,illustration ,,beach ,,rambles ,,in ,,search ,,of ,,seaside ,,pebbles ,,and ,,crystals4 ,,with ,,some ,,observations ,,on ,,the ,,origin ,,of ,,the ,,diamond ,,and ,,other ,,precious ,,stones4 ,,by ,j4 ,g4 ,,francis4 ,,london3 ,,routledge1 ,,warne1 ,,and ,,routledge1 ,,farringdon ,,street2 ,,and #ef1 ,,walker ,,street1 ,,new ,,york4 #ahei4 ,,introduction4 ,there is a pleasure to an intelligent mind in discovering the origin1 or tracing the past history1 of any natural object as revealed in its structure and growth4 ,it is thus that the study of trees and plants1 ferns and field flowers1 occupies and delights us4 ,and a similar interest would be found to attach to ,seaside ,pebbles1 as one branch of mineralogy1 if we could once come to observe and understand them4 ,but while the marine shells of ,england have been all numbered and classified1 and even the seaweeds are emerging out of dim confusion into the order of botanical arrangement1 there is no popular work extant on the subject of our pebbles4 ,dr4 ,mantell1 indeed1 published an elegant little volume1 entitled 8,thoughts on a ,pebble20 but he therein treats of a single species1 the ,choanite2 whereas1 we have other fossil creatures beside ,choanites preserved in the heart of siliceous pebbles2 and our shores yield from time to time varieties of agate and jasper1 differing from the oriental1 and some of them of great beauty4 ,in the present treatise1 an attempt has been made to commend this subject to more general attention1 by grouping together many scattered facts and methodizing the results4 ,learned disquisitions and technical terms have been as much as possible avoided2 but in the concluding chapters1 sundry interesting points in natural philosophy bearing upon the subject are handled rather more scientifically2 and here1 some original matter will be found4 ,the coloured plates are after drawings by a well-known and ingenious artist2#a the original specimens being in my own collection4 ,they have been carefully and faithfully executed1 and are on the same scale as the pebbles themselves4 ,if this essay of mine should induce any one possessed of ampler leisure and more adequate powers to enter more largely upon the merits of the theme1 ,i shall be indeed gratified4 ,j4 ,g4 ,,francis4 ,isle of ,wight1 #ahei4 #a ,m4 ,w4 ,s4 ,coleman4 ,,beach ,,rambles1 ,,etc41 ,,etc4 ,,chapter ,i4 ,,aspect ,,of ,a ,,beach1 ,,and ,,its ,,probable ,,origin4--,,true ,,nature ,,of ,,the ,,pebbles ,,which ,,compose ,,it4 ,i know of few things more pleasant than to ramble for a mile along one of our southern beaches in the early days of autumn4 ,we get the sniff of the sea-breeze2 we see prismatic colours dappling the water1 or curiously reflected from capes of wet sand2 solemn1 beetling cliffs1 broken here and there by a green slope1 rise on one side of us2 while1 on the other1 we are enchanted by the wild music of the waves1 as they dash noisily upon the shingle at our feet1 and then trickle back with faint1 lisping murmurs into the azure gulf4 ,alpine scenery is majestic1 and river-lit landscapes are delicious2 but they seem as pictures of still life compared with the stir and resonance of the shore and the ocean4 ,the breeze which bends the standing corn does not impart so much pleasure as that which dimples the bay at the foot of our rustic garden2 the thunder-cloud resting on a mountain is not so impressive as that huge wall of inky blackness1 which seems as if it would choke the very light and air while it gathers on the horizon1 but will presently rend asunder and purify the overcharged atmosphere by launching a tempest upon the face of the deep4 ,there are few persons who1 after spending one or two consecutive summers at ,eastbourne1 or in the ,isle of ,wight1 can repress an ardent longing to visit similar scenes from time to time4 ,the sea-side stroll has1 however1 been accused of monotony4 ,but this is either by really incompetent judges1 or by inveterate sportsmen1 to whom the neighbourhood of the ocean suggests nothing more apposite than a meet with harriers on the downs1 or a raid upon puzzled rabbits in some outlying warren1 with the aid of a keeper1 ferrets1 and 8varmint0 dogs4 ,to such1 even a brief sojourn on the simple-featured coast may1 undoubtedly1 prove wearisome2 but the fault rests with themselves4 ,for1 all the while1 others1 who are better informed and more awake to what lies around them1 will be cheerfully occupied in kindred pursuits at the foot of the cliff1 or away on the beach1 or far out1 at low tide1 among the weedy rocks and sand4 ,here they hunt the cockle and the razor-shell1 collect bright alg and marvellous zoophytes1 or search for agates and fossils among the endless heaps of shingle4 ,the delicate actini and the rarer sea-weeds cannot be obtained in winter2 but the pebbles1 which are intended to form the subject of this little book1 may always be met with2 and the changes induced by rough winds and surging tides1 yield them in even greater abundance4 ,the pleasure of collecting pebbles has been greatly enhanced1 to my mind1 by considering how it is that we come to have pebbly beaches at all4 ,inevitable as these may appear to some people1 they are quite a phenomenon in their way1 and to the full as deserving our attention as the colony in a rabbit-warren4 ,originally1 the land alone possesses such materials2 but it is the sea which finds them out2 and these two facts1 put side by side1 have sometimes reminded me of the arbitrary allotment of the sexes in the old mythology4 ,oceanus being an enterprising gentleman4 ,terra 7always feminine7 is the quiescent lady1 to whom he pays his court4 ,she carries a prodigious number of these treasures in her flinty bosom2 but it is only he1 and his friends the rivers1 who can get at them and draw them forth4 ,in our ,english ,channel1 ,ocean is as fond of doing this1 and of fringing his waterline with a brown pebbly border1 as other gentlemen are1 now-a-days1 of wearing1 if possible1 a beard like that of the ,sophi4 ,nor is this surprising1 when we remember that all creatures naturally desire something which they have not got4 ,for the bottom of the sea itself is no beach at all1 but chalk or sand1 and sometimes hardened sandstone1 with1 ,i dare say1 many precipitous pits and hollows1 and many pointed crags4 ,here1 gigantic fronds of the oar-weed wave to and fro among thousands of acres of dulse and bladderwrack2 while porpoises and dog-fish dive1 and limpets and mussels crawl1 and arrowy lobsters shoot through the cerulean gloom1 and 7if ,mr4 ,tennyson may be believed7 mermen and mermaids play at hide-and-seek4 ,wonderful things there must be1 if we could only spy them out2 but ,i do not think many pebbles4 ,whereas1 our mother ,earth teems with these latter4 ,there are jaspers in the conglomerate1 and agates in the mountain rocks1 and veins of porphyry and serpentine in the trap and basalt1 and garnets and sapphires in the granite1 and flint-nodules in the chalk1 and quartz-crystals almost everywhere4 ,probably these exist1 also1 in many of the submarine strata2 but unless a volcanic eruption should occur1 there is no force in operation there to dislodge them4 ,the bed of the ocean1 and all depths of it below a hundred feet perpendicular1#b as divers well know1 remain calm and still1 even when a tempest is raging above4 ,but on what we are pleased to call 8terra firma10 the case is reversed4 ,solid as the ground appears1 all is subject to elemental change and motion2 and whenever the waves of the sea or the strong current of a river can plough some crumbling chine1 or wear away the face of a cliff1 down come the imbedded pebbles and crystals1 and gradually form a beach upon the margin of the ocean4 ,and this beach is tossed up and down1 and rolled to and fro1 until most of the stones composing it have become as smooth as hazel-nuts4 ,the above may be rather a rough sketch of the source of a beach2 but ,i believe it is correct in its leading features4 ,in a subsequent chapter we may better note certain peculiarities which are more than meet the eye4 ,but what are the pebbles themselves8 ,most persons have occasionally handled specimens of the precious stones or 8gems20 but few of them1 perhaps1 are aware that our pebbles of the road-side and sea-shore claim a common origin with these dazzling crystals4 ,such is1 however1 the fact4 ,chemical analysis1 availing itself of the blow-pipe1 the solvent acids1 and the voltaic battery1 has succeeded in determining the base of every known gem4 ,and the earths which furnish such bases are chiefly two--,,alumina1 or clay1 and ,,silica1 or pure flint4 ,from these1 with an admixture of lime1 and sometimes of iron1 in small quantities1 all the native gems are derived1 with the exception of the diamond1 whose base is ,,carbon4 ,intensely hard as these substances are1 and apparently not susceptible of change if left to themselves1 they have probably passed through great chemical changes in the silent laboratory of ,nature4 ,for it is supposed that our operations in analysis1 if carefully conducted1 merely bring back their subjects1 by a kind of reversing process1 to their several primitive bases4 ,now it is evident that the commoner pebbles are derived from these same earths1 of clay or flint1 albeit in a debased condition4 ,for there is nothing else of which they could be made3 neither do they exhibit any properties foreign to those which such substances possess4 ,yet1 how vast is the difference between an oriental gem and the brightest production of clay-pits or granite rocks4 ,not greater1 however1 than that between ,damascus steel and coarse pig-iron2 or1 between ,french lawn and sail-cloth4 ,and if ,art can work such distinctions1 why not ,nature8 ,in fact1 a perfect gem is a master-piece which chemistry and crystallization have combined to elaborate1 and which man has ransacked the corners of the earth to obtain4 ,the deep has been made to surrender its treasures to the diver or the sunken net3 the rock has been blasted1 and its inmost vein searched3 the rushing river filtered1 and its sand sifted3 and the contents of the jeweller's caskets are the result4 ,here may be seen diamonds from ,golconda2 and rubies from ,samarcand and ,pegu3 sapphires1 emeralds1 and amethysts from ,persia1 ,arabia1 and ,armenia3 the topaz1 blazing like fire1 from the ,indies or from the ,ural3 the turquoise1 with its delicious blue1 from ,arabia and ,palestine3 the opal from ,honduras3 the blood-red garnet and amandine from ,bohemia1 ,ceylon1 and ,greenland3 the jacinth and the chrysoprase1 the chrysolite and beryl1 with pure pearls of globular form1 all from the land of the rising sun1 while a deep brown jasper1 rayed with stripes and rings as black as jet1 has travelled like a wandering palmer from sultry ,egypt or the terrible desert of ,sinai4 ,to form and perfect the finer crystals1 extremes of heat or cold appear to be necessary3 whereas our clime has perhaps always been temperate4 ,beside this1 it is probable that the mother-earth is not found pure with us4 ,there is a kind of white clay1 called 8kaolin10 obtained in one particular quarry near ,meissen in ,saxony1 and met with nowhere else4 ,from this clay the exquisite ,dresden porcelain is baked1 and this clay cannot be exactly imitated4 ,a near approach to it has been made by mixing good potter's clay with pounded chalcedony-flints2 but still the biscuit so produced is never equal to that from the 8kaolin40 ,in like manner1 we may suppose that the peculiar earth which exists in sapphires no longer occurs in our post-tertiary clay-beds4 ,moreover1 we know that there are many different clays occurring in our geological strata4 ,we have the clays of the ,lower ,tertiary2 the clay of the ,wealden2 and the ,kimmeridge and ,oxford clays1 both of which belong to the ,oolite4 ,also in these main divisions1 sundry mineralogical varieties are comprised under a common name4 ,but the great age of the granite formation renders it certain that from none of these clays could those sapphires have come 7as to their base71 which are born of the granite rock4 ,indeed1 our existing beds of clay are more or less mingled with felspar1 and felspar is one of the 8silicates20 whereas the blue sapphire is pure alumina free from all admixture of silica4 ,however this may be1 the great fields for gems are in ,india and the island of ,ceylon1 and in certain parts of the ,russian dominions4 ,no very valuable stones have as yet been obtained from ,australia2 although the vicinity of gold-mines has always been held to be prolific in at least one kind3 the 8mother of ruby0 being a roseate substance embedded in the rock1 and generally met with alongside of a vein of gold4 ,the topazes are not equal to those from ,saxony4 ,as to our own sea-girt ,isle1 it is surely as guiltless of indigenous gems1 as of white elephants or birds of paradise4 ,had any such existed with us1 they must long ere this have been brought to light and appeared in the market4 ,we have bored the plain to two hundred fathoms' depth3 we have pierced the hillside in tunnels which extend for miles3 geologists and antiquarians have delved and hammered and sifted3 many curious fossils have turned up1 and a world's wealth in minerals1 but never anything like a diamond or an oriental sapphire4 ,it is well that1 to console us under such apparent poverty as to the gems1 we possess the treasure an hundred-fold in other shapes1 though derived from the same sources4 ,clay gives us no sapphires2 but it floors our ponds and canals1 furnishes our earthenware1 and yields the bricks which have built the ribs of ,london4 ,carbon refuses to flash upon us in the rays of an indigenous 8brilliant10 but it feeds our furnaces1 propels our steamers and locomotives1 and cheers a million of household hearths under the well-known form of ,coal4 ,and ,iron is our national sceptre3 it reddens here no jacinth or ruby2 but it supplies us with spades and ploughshares1 lays down thousands of miles of railway1 and has made ,england the forge and workshop of the known world for giant engines and massive machinery4 ,if our wealth be less dazzling than that from ,golconda or ,peru1 it is1 we may hope1 more durable2 flowing to us through a healthier channel1 by the honest labour and steady perseverance of the sons of the soil4 99 99 99 99 99 ,this is somewhat of a digression from the subject of ,sea-side pebbles4 ,but then1 as was said1 the magnificent crystals are their near kindred2 and in society the custom is to bring in any great connections we may have1 on the first fair opportunity3 that once done1 our respectability is supposed to be established4 #b ,on the banks of ,newfoundland1 and to the south of the ,cape of ,good ,hope1 extraordinary exceptions occur to this rule2 the sea being there agitated to a vast depth1 perhaps as much as five hundred feet4 ,but this is probably connected with the current of the great gulf-stream4 ,,chapter ,,ii4 ,,the ,,lapidary',s ,,board2 ,,and ,,his ,,workshop4 ,in some of our provincial towns along the coast1 the open door and cheerful bow-window of the lapidary1 generally situated in the best street1 form a coup d'il which can hardly fail of enticing a visitor to look in once during his morning walk4 ,if he should do this1 he will probably become aware1 by a certain whirring sound1 that there is an inner room which serves for a workshop4 ,this latter ,i have always been partial to3 but as the contents of the show-room are the most attractive1 ,i will speak of them first1 reserving to the end of the chapter a description of the lapidary's wheel and other implements of his trade4 ,let us suppose that we are in the pretty town of ,sidmouth in ,south ,devon4 ,somebody wishes for a jet bead to replace one missing from a bracelet1 and we sally forth in quest of a jeweller's shop1 but come first upon that of his cousin the lapidary1 which may probably do as well4 ,entering the doorway1 a gigantic 8snakestone0 from ,whitby1 flanks the threshold on one side2 and on the other a lump of iron ore1 of some two hundred weight1 keeps company with a quartz agate of equally cyclopean dimensions4 ,these are striking objects3 and instinctively we pause for a moment and consider whence they came4 ,one of them has been washed out of the ribs of the conglomerate3 another1 after being dug from the bowels of the earth1 was sent aloft by the miners as lumber3 the third1 once the shell of a living ammonite1 must have lain for thousands of years in its cemetery of limestone rock1 and was only disinterred when some northern contractor1 reckless probably of fossil remains1 but wide-awake to the actualities of his own generation1 was excavating for a railway tunnel4 ,inland productions these1 for the most part4 ,but the threshold is only introductory3 pass a few steps onward1 and we shall handle substances which are as strictly marine as 8crassicornis0 or tangle4 ,the interior of the shop is fitted up with a massive semicircular dresser of elm or maple1 some four feet in height1 and perhaps half as many in width4 ,this is heaped with specimens culled from various beaches1 and several convenient shelves are similarly adorned2 the polished stones lying in open trays1 but set at an angle so as best to reflect the light4 ,the eyeless head of a ,saurian1 a creature belonging to an extinct race1 is suspended from the ceiling2 and a stuffed cormorant1 a well-known sea-bird of our own day1 mounted on a rude tripod of fir-bough1 fills the only spare niche in the apartment4 ,but there is no study or affectation in all this3 it is as genuine as the tent of shipwrecked ,crusoe4 ,the lapidary has from the first felt himself at home with ,nature1 and has found room for many of her devices and eccentricities1 which he could not now bear to turn out of doors4 ,neither are we inclined to quarrel with him about his arrangements1 though his shop exhibits nothing which will remind us of a frontage in ,pall ,mall or ,bond ,street4 ,moreover1 when we look a little closer1 he is not such a mere dreamer after all4 ,commerce has not been forgotten1 nor is a certain kind of elegance lacking4 ,those well-washed panes of crown-glass are decorated with wisps of dried sea-weed more delicate than ostrich-feathers1 and which serve the purpose of a hygrometer4 ,and1 interspersed with these1 are sundry nuggets of amber1 bones of the cuttle-fish for your pounce-box1 and a string of veritable jet-beads3 from which latter we at once select our purchase4 ,but we are now standing before the central counter1 and our attention is drawn to the curious and beautiful fossils which lie upon it4 ,we take up one to which the late ,dr4 ,mantell kindly gave the name of a 8choanite40 ,in doing this1 he not only adopted a foundling1 but conferred endless benefit upon the lapidaries4 ,nothing will sell in this country without a name3 the appellation chosen by the ,doctor was judged suitable1 and a large and increasing sale of the fossil has followed upon it4 ,this one is of a portly size2 and the lapidary1 after slicing it in two1 has polished one of the flat surfaces4 ,the internal structure revealed by this section is not unlike the corolla of a daisy1 and at once reminds us of the living zoophyte called 8actinia bellis40 ,choanite means 8funnel-body30 and the creature which lies here petrified must1 when alive1 have been globular or pyriform1 with many tubular arms branching out from one central trunk4 ,the petrifaction has been faithful to its prototype3 the several tubes being now charged with limestone1 and the space between them1 once a gelatinous substance1 still retaining that appearance in a medium of semi-pellucid chalcedony4 ,illustration3 ,,alcyonium ,,digitatum4 ,by the side of the choanite is another fossil1 which we now call an 8alcyonite30 the learned name of the nearest living species being 8alcyonium digitatum40 ,it is known in the ,isle of ,wight as 8deadman's fingers40 ,despite the above unpleasing nickname1 this is a most beautiful fossil4 ,its outer form resembles that of a branching ice-plant3 while a polished section of one of the stems shows filaments all lying in the direction of the axis1 and exhibiting in their cut ends an effect not unlike that of the granulations in a slice from a fresh cucumber4 ,when the pith1 as sometimes happens1 is particoloured1 ,i do not know a more desirable stone for the cabinet4 ,fine specimens of this are now very scarce4 ,another of these alcyonites has been polished all round1 instead of dividing it3 and the pebble being translucent1 one can almost count the fibres or tubes disposed lengthwise4 ,then we have a zoophyte1 not injected as are the choanites1 but preserved bodily1 in delicate gray flint4 ,it is an undoubted 8actinia30 in every respect the same with those pulpy individuals who are displaying their jelly-like bodies and floral hues in many a household aquarium4 ,this creature once floated up and down in shallow marine pools1 or clung to banks of ribbon-weed fringing the coast-skerries4 ,at present1 himself of stone1 he is firmly wedged in a hollow within a large pebble1 and reminds us of the words of a pretty song3-- 8,i dreamt ,i dwelt in marble halls40 ,several silicified sponges may next be examined4 ,these are not exactly beautiful1 but they are curiously intricate2 the once elastic tubes having stiffened into 8silex0 of a light brown colour1 and a horizontal section displaying their fine reticulations4 ,a step further1 and what is that handsome stone8 ,it is a block of ,devonian jasper3 scarcely so hard as the ,egyptian1 but more attractive1 owing to the richness of its hues4 ,it is striated with veins of agate1 and here and there 8shot0 with a dark metallic 8moss0 of the colour of bloodstone4 ,as a set off to this1 the lapidary has arranged with true taste some quaint pieces of conglomerate1 in which the nodules of chalcedony or crystals of quartz have taken a high polish1 and are agreeably relieved by streaks of red jasper and blotches of yellow limestone4 ,another part of the board exhibits a score of the well-known 8echini10 which children call 8sea-eggs40 ,these embrace two varieties1 8spatangus0 and 8cor anguinum20 or1 in the vernacular dialect1 8fairy-loaves0 and 8fairy-hearts40 ,a third form of the ,spatangus kind1 but with a pointed cusp1 is called 8,galerites albogalerus40 ,a few are chalcedonized3 in others1 a bright spar has filled up the interior of the hollow conical shell4 ,illustration3 ,,ananchytes ,,ovatus4 ,,fairy ,,loaf4 ,,cor ,,anguinum4 ,,fairy ,,heart4 ,,galerites ,,albogalerus4 ,a ,,fairy ,,loaf4 ,,ammonite4 ,a small open tray of twisted card contains several bits of carnelian1 and a true bloodstone from the ,yorkshire coast3 while on a strip of canvas as a lit de repos1 lie a cray-fish and some belemnites from the ,gault formation of the ,wight1 hemmed round by lustrous sharks' teeth3 the latter now hardened into stone1 and proclaiming by their isolated condition that the jaws in which they once grew were cartilaginous1 and have therefore perished4 ,thus the store of the lapidary comprises two main divisions1 stones organic and inorganic1 of the past history of the latter we know little2 and can only judge by surmise1 upon approved geological principles4 ,in the former1 there occur plain indications that we are not handling either an accidental 8lusus0 or an embryo2 but that the structure here perpetuated was once endowed with life1 and belonged to a creature having its assigned place in the scale of animated being4 ,let any one fill a drawer with such specimens gathered by himself3 and1 omitting the question of mere marketable value1 what jeweller's counter can compare with it for real interest8 ,the oriental gems1 though they gleam as if 8all air and fire10 are but dead crystals1 and have never stood higher than they stand now3 whereas these pretty fossils from our wave-beaten coast tell each a wondrous tale1 and form a kind of tangible link between the zoophyte of to-day and his far-removed ancestry in the earliest seas which washed the surface of our globe4 ,illustration3 ,a ,,cray-,,fish1 ,,from ,,the ,,gault4 ,a ,,shark',s ,,tooth4 ,but let us now look into the back-parlour1 where all the cutting and polishing takes place4 ,a peep behind the scenes is generally instructive4 ,the first time ,i ever entered such a 8sanctum10 ,i remained there nearly an hour2 asking questions1 you may be sure4 ,the lapidary works by means of wheels4 ,these wheels are instruments for sawing and filing the stones which come under his hand3 he has nothing to add to them1 but a good deal to take away from them4 ,when any one divides an orange with a sharp knife equatorially1 he treats it as a choanite is treated in the simplest case3 but the principle is somewhat different4 ,the knife may cut the first as smooth as cheese1 owing to the superior hardness of the steel and the compressibility of the fruit3 but no instrument that man can invent will ever do this with a substance like flint or jasper4 ,all that the wheel can do is to act like a saw1 and to take out from the centre of the pebble1 in the shape of saw-dust1 a section equal in thickness to the wheel itself4 ,if this be effected1 and no more1 then that part of the work is perfectly done3 and this is not effected1 without some fault1 once in a dozen times1 unless the workman be both skilful and attentive4 ,the usual fault is1 that the plane of section is not kept perfectly horizontal4 ,but let us now see how the wheels act4 ,there must always be two of them3 one which is to cut by its edge1 and another which is to polish by its surface4 ,but the lapidary is generally provided with several of both kinds2 partly in case of accident1 partly on account of variety in the texture of the pebbles brought to him4 ,each wheel is fixed upon an axis of its own1 of perhaps a cubit's length4 ,and this portable axis is bevelled as a screw1 for some inches1 at the other end1 so that it can be screwed at pleasure into a solid revolving spindle planted upright in the floor of the workshop4 ,the spindle itself may either be worked by a leathern strap and a treddle2 or1 as is more usual1 by a winch-handle acting at a mechanical advantage4 ,the horizontal wheel being made to spin round by turning the winch with one hand1 the workman grasps the pebble firmly in the other1 and presses it against the edge of the disk1 which revolving in a horizontal plane acts like a saw4 ,a pencil-line may first be drawn on the stone1 to mark out the intended section4 ,but this is not all4 ,a dry wheel1 although it were formed of the finest steel1 could barely scratch the surface of an agate3 or1 if great force were exerted at the winch1 would splinter it4 ,the lapidary has need of diamond-powder1 emery1 and rotten-stone4 ,he makes use also of a peculiar kind of oil1 and has a jar of water within reach for ordinary purposes4 ,the oil is called 8brick-oil40 ,it comes from coal-tar1 and does not heat by friction1 as common oil would3 consequently1 it neither burns the operator's fingers1 nor injures his specimens by causing the wheel to glow too fiercely4 ,of the above materials1 the most expensive is the diamond4 ,although obtained by crushing 8bort10 of little intrinsic value1 it never costs the lapidary less than twenty-five shillings per carat2 and he can do nothing without it4 ,emery1 on the other hand1 which is a coarse variety of corundum1 is cheap enough4 ,the first wheel put on the spindle is an extremely thin one1 it can scarcely be too thin1 and is made of tin or of the softest steel4 ,its disk should lie exactly level in the plane of the horizon1 and it must not have the shadow of a notch or bend upon its delicate edge4 ,this wheel the lapidary wets1 along its entire rim1 with oil or water1 by means of a feather4 ,a small portion of the diamond1 ready mixed with oil1 is then applied to the edge of the wheel1 the latter being made to revolve gently1 until it has taken up the mixture from his finger4 ,the wheel thus primed is now set in motion1 at first slowly1 but by degrees more rapidly1 and the pebble being steadily pressed1 not pushed1 against it1 the diamond eats into the metal1 and the metallic edge armed with an adamantine tooth eats into the solid stone1 and at length saws it asunder4 ,in this way an agate of a couple of inches diameter1 and of average hardness1 will be neatly divided in less than a quarter of an hour4 ,the two surfaces thus obtained are then inspected1 and if the stone be judged worthy1 the lapidary proceeds to polish either or both of them4 ,there is always some difference between the two1 a slice having been taken out of the pebble answering to the thickness of the wheel2 hence the importance of using a delicate disk1 especially for valuable agates4 ,to accomplish the polishing1 the thin wheel of steel is now exchanged for a much thicker one of lead1 which takes its place upon the spindle4 ,it is no longer the edge1 but the ribbed upper surface which is now to do the work2 and to charge it for this1 it is smeared over with rotten-stone dipped in water4 ,this heavy wheel is then set spinning at a rapid rate1 and the pebble is pressed flat upon it with great force2 the heavier the hand the better4 ,as it slidders about1 the action of the rotten-stone1 which is very fine in the grain1 gives it by degrees a high polish4 ,and this polish is durable1 and will preserve the agate from the corroding effect of our atmosphere4 ,less than the above will not dress a pebble for the cabinet4 ,occasionally1 much more is needed4 ,for a very fine jasper ,i have seen two or three polishing wheels employed1 the last disk being always loaded with soft rotten-stone4 ,as to the expense1 it will cost from sixpence to ninepence to cut a small pebble through2 and to polish one surface1 perhaps as much more4 ,this is supposing that you take your specimens direct to a working lapidary4 ,if1 instead of doing so1 you leave them at a jeweller's shop with directions to get them done1 you may expect to be charged fully twice as much4 ,nor is this so unreasonable as it sounds2 for the man so deputed acts as your servant and will look to be paid for his trouble3 he must have recourse to the lapidary1 and you might at once have done so yourself4 ,to dress a large pebble1 especially if a difficult stone in the grain1 is a more costly affair4 ,it demands many consecutive hours of labour and unremitting attention1 and involves a perceptible outlay in diamond4 ,moreover1 the weight of such a stone causes1 by its vis inerti1 a severe strain on the machinery1 which then fares like an engine drawing a monster-train up the inclined plane4 ,this wear and tear of the wheels is so serious a consideration in provincial towns1 where the supply of 8plant0 is limited1 that few lapidaries out of ,london will undertake1 for any reasonable sum1 to dress the agates and close-grained jaspers when they run large4 ,one of my jaspers1 a ,devonshire beauty1 took eight hours of cutting and polishing in ,clerkenwell2 and even this was a trifle compared to some of which ,i have heard tell4 ,certain substances again are intrinsically teasing to the wheel4 ,there is a class of jaspery flints which have a dodge or twist in their texture2 the lapidary abhors these visitors1 and will not meddle with them1 if he knows it1 without bargaining for extra pay4 ,i have a great pleasure in seeing fine pebbles of my own polished4 ,you can stop the wheel every now and then1 and watch how the stone gets on4 ,when the chiaroscuro begins to come out on the coloured pattern1 the effect is like that produced by holding some lively object before a mirror4 ,the surface no longer appears flat2 but you obtain arial perspective1 as in a good painting4 ,it were vain to deny that the lapidary's acquaintance might in time prove an expensive amusement2 for pebble-hunting is a hobby1 and like all hobbies is liable to be over-ridden4 ,but experience begets caution4 ,for a score of stones which a tyro will leave on the board to be cut1 a connoisseur will not venture above two or three4 ,beginners1 however1 always run some risk1 being naturally enthusiastic2 and the best way for them is to lay down a few sound rules1 and to adhere to these strictly4 ,one good maxim is1 to pay for all work upon the spot4 ,even an enthusiast will soon grow weary of parting with ready money for mere trash4 ,some persons set up a wheel1 c41 of their own1 and operate upon their treasure at home4 ,i do not recommend this course to any one1 unless he were the son of a lapidary1 as ,achilles was 8son of ,peleus10 and intend to devote himself to the occupation4 ,for most amateurs it will be found difficult4 ,it is five to one that a young hand signalizes his apprenticeship by spoiling his best agates1 cutting his fingers1 and damaging his machinery4 ,the only advantage1 as far as ,i know1 which such a plan may possess1 is that you might try some curious experiments in working at odd pebbles4 ,a lapidary's implements1 if complete as they ought to be1 will cost him from seven to ten pounds4 ,about five pounds' worth of diamond is a very good commencing stock4 ,five pounds more will fit up his shop with a counter and drawers to lock1 and his work-room with a table1 stool1 hammers1 a few cloths1 and a good lens4 ,this is all that he requires1 besides knowledge and patience4 ,suppose the entire outlay should amount to twenty pounds2 in a good watering-place1 on the south coast of ,england1 he ought to make from a hundred to a hundred and fifty pounds a year1 without doing any night-work4 ,but by day he must not spare hands nor eyes3 and he cannot afford to make any serious mistakes with his customers4 ,if he cuts a fine choanite the wrong way1 or mutilates a rare alcyonite1 or robs a promising 8landscape-pebble0 of its pellucid sky1 it is well-nigh over with his professional reputation2 and that once gone1 he will get little custom of value4 ,when ,i was last in ,ventnor1 the sea had thrown up some singularly fine pebbles for several successive tides4 ,three working lapidaries rented houses in the town2 but all the more valuable orders went to one of them4 ,this man knew admirably well how to handle almost any stone which was brought to him2 while his two brethren in the craft1 though both of them hard-working men1 were comparatively ignorant4 ,they were like quack-doctors1 and he was a learned professor4 ,,chapter ,,iii4 ,,the ,,contents ,,of ,a ,,good ,,beach1 ,,and ,,how ,,to ,,obtain ,,them4 ,i have always been fond of trying conclusions with ,nature at first hand4 ,when a boy at school1 ,i learnt to swim by following some bigger boys1 who could swim already1 into water which was quite out of all our depths4 ,i had never till then tried1 except in shallow places1 which1 whatever people may think1 afford no criterion of how it will fare with you in a drowning current4 ,on this occasion we swam about fifty yards1 in ten-foot water1 not without trepidation at first on my part1 but towards the end ,i gained breath and confidence4 ,after that1 ,i never had any difficulty1 whether in lakes or rivers1 and ,i have ventured into scores of them at all seasons1 and that without the slightest previous notice of their depth or temperature4 ,in like manner1 ,i am convinced that to master anything1 whether bodily or intellectual1 the all-important point is to make a genuine effort of our own4 ,books may do something for us2 teachers1 if we can afford them1 something more2 but we must do the main part ourselves4 ,i am reminded of the above in proposing to describe a good beach4 ,a lapidary once said to me1 8,sir1 you know this bit of the coast as well as ,i do myself40 ,it was a high compliment1 but it was not unmerited4 ,the truth is1 ,i possess 8memoranda10 jotted down from time to time1 of divers beaches and their usual contents1 and ,i find that1 omitting all mention of bare reefs in shale and sandstone1 or long reaches of sand1 which are of continual occurrence1 there remain some forty odd miles of shingle lying in three different parts of the ,english coast1 with the character of which ,i am thoroughly well acquainted4 ,some of these beaches are very superior to others1 and ,i select such for description4 ,amid countless boulders of flint1 and heaps of hardened gravel1 we have upon a good beach certain smooth1 translucent pebbles1 and we have fossil petrifactions enveloped in an opaque crust1 and we have the variegated jaspers and moss-agates4 ,our semi-pellucid stones were1 with the exception of an occasional bit of 8bloodstone10 the only pebbles of native growth known in ,britain half a century ago4 ,they consist of two or three varieties of agate1 two of carnelian1 and one of the crystal called an aquamarine4 ,the presence of this latter on the coast is a mere accident1 as it is for the most part a far-inland production1 the growth of granitic rocks4 ,agates and carnelians were once of frequent occurrence1 but they have now become scarce4 ,their brilliancy insures their being instantly seen1 when not buried under the loose shingle4 ,,agate1 with us1 is always found smooth1 and some of the best specimens are indented on the sides1 as if they had been subjected to a pinch or pressure while in a soft state4 ,as this substance is not met with under the spiked form of a crystal1 we may suppose that it never was crystallized4 ,it is not laminar1 like the diamond1 nor coated1 like a pearl1 but one simple concretion4 ,it contains some alumina1 but more silica1 and is probably one form of the onyx-stone4 ,it is seldom very bright1 being more or less debased with earthy particles1 but it is a pretty thing to pick up1 and it takes a high polish on the wheel of the lapidary4 ,i believe it is harder than jasper1 but perhaps scarcely so tough4 ,in ,england1 we find the agates greenish white1 lemon colour1 or dark grey2 and on the island of ,iona1 hard by the ruined monastery1 they are picked up of a soft green hue1 and as clear as a chrysolite4 ,the best lump of agate ,i ever saw came from an unfrequented bay in the ,isle of ,wight2 the colours were dullish1 but in texture it approached an oriental onyx1 and it weighed above a pound4 ,i know of no equal specimen in the collection of the ,british ,museum4 ,,carnelian1 which is our purest form of chalcedony1 is undoubtedly a more beautiful stone than the agate4 ,this is either milk-white or of a deep red4 ,the latter tint is becoming scarce in ,britain1 having been much sought out for the manufacture of seals and ring-stones1 but now that 8sards0 are so much in vogue1 the real carnelian may get a respite and appear in force again1 as salmon have sometimes been known to do in their native streams after falling off for many years4 ,the 8sard0 may be considered as the carnelian of the desert1 or the 8carnelian0 as the sard of the seashore4 ,sards are plentiful in the east4 ,travellers1 whose path lies over the waste plains and sandy reaches of ,egypt or ,lybia1 should pick up any darkly-tinted pebble they may descry on the surface of the ground3 it is probably a sard1 perchance a valuable specimen4 ,one day1 in homely ,brighton1 stepping into a lapidary's1 ,i found upon his counter half-a-dozen unusual-looking stones already cut in two1 and some of them polished4 8,these are not ,english10 said ,i1 8where did you get them80 ,he told me1 in reply1 that a gentleman just arrived from ,egypt had taken these stones out of the mouth of his carpet-bag and left them with him to be dressed4 ,i examined them closely4 ,as ,i had expected1 on learning the locality1 one was a blood-red sard1 and two others were jaspers2 a fourth was curiously mottled and ribbed with chalcedony4 ,they had been obtained without any expense1 and at no trouble beyond that of stooping to pick them up1 and all four were very saleable articles in the trade4 ,the finest red carnelians are brought from the ,east1 but they occur also in ,silesia1 and splendid specimens of a dark hue have been obtained from the sands of the ,rhine4 ,in ,scotland1 on the beach of ,st4 ,andrew's1 ,i found a pretty variety1 8eyed10 but it is scarce4 ,i have since seen similar stones1 which had been picked up at ,cromer or at ,aldborough4 ,the ,,aquamarine is sometimes met with on the sea-shore at ,aberystwith in ,north ,wales1 and more rarely on our eastern coast4 ,of course it is a crystal1 which has come down from the inland rocks1 and has afterwards been rolled smooth by the action of the waves among other pebbles4 ,the base of all our ,english crystals is ,silica1 with an admixture of lime4 ,rock-crystal is the purest form of ,silica4 ,common spar is a carbonate of lime4 ,the black or grey flints1 which are shed in myriads from many a chalk-cliff1 are 8,silex0 much debased2 some dark1 viscous matter1 such as bitumen1 having united1 ,i think chemically1 with the clearer substance4 ,quartz are the small crystals of silica2 a mass of these will vary in its configuration4 ,cairngorum stones are rock-crystals from the mountain of that name1 deeply impregnated with iron and aluminium4 ,the claret-coloured ones1 found on ,ben ,m',dhui1 are our nearest approach to an amethyst1 and some deep-red specimens remind us of the garnet4 ,as ,i propose here to speak only of our sea-shore pebbles1 ,i shall not dwell upon the ,scotch crystals1 which are1 moreover1 familiar to almost everybody in the ornaments of tartan dresses4 ,neither shall ,i touch upon the fluor spars of ,derbyshire1 or the magnificent crystals found in the mines of ,cornwall and ,cumberland4 ,all these belong to crystallography1 and ,i am persuaded that1 in our productions of the seaside1 a crystallizing process has been the exception and not the rule4 ,i will only add to what is said above1 that1 as far as ,i know1 amidst the great range of tints comprised in the different crystals from ,scotland and from ,ireland1 there is no instance of the peach-colour or delicate pink1 such as are picked up on some of the 8moraines0 on the ,alps of ,savoy4 ,secondly1 such parts of our coast as are hemmed in by cretaceous or sandstone cliffs abound in fossil pebbles4 ,the organisms which these inclose are1 almost universally1 those of zoophytes4 ,dendritic or vegetable markings are rare1 occurring principally in the white chalcedony4 ,a good pebble of this kind used to be called a mocha-stone2 the difficulty always was how to be quite sure where it came from4 ,those from the ,indies would generally be handsomer2 while1 on the other hand1 an equally fine specimen from our own shores would be of treble value4 ,but the petrifactions described in ,chapter ,,ii4 may be readily obtained throughout the entire range of coast from ,hastings to ,selsea ,bill1 and further4 ,in gathering these pebbles1 if you intend them for the cabinet1 and not merely to amuse a passing hour1 regard should be had to three points2 the size1 the pattern1 and the colour4 ,the last-mentioned1 which is1 nine times out of ten1 the cause of average specimens being seen at all1 will itself be determined by the material of which the pebble consists4 ,chalcedony has a bluish cast in the solid stone1 especially when it is wet with brine2 but where 8moss0 is present1 this will cause a golden or red tint4 ,jasper1 when semi-transparent1 is greenish1 otherwise1 a blood-red4 ,as to size1 choanites and the globular 8sponges0 will vary from that of a small pippin to that of a full-sized orange4 ,very rarely they exceed this4 ,if the pebble be of the right sort1 the larger the better3 but1 as a general rule1 the finer ones run small4 ,the pattern is the most important feature2 as you will soon recognize in making a collection4 ,and this1 moreover1 if no injury has yet been done to the stone1 decides the 8contour0 of the rolling beauty4 ,i shall not1 however1 say much about these patterns2 not wishing to be charged with exaggeration1 as ,i probably should be1 by those who have never seen good ones1 and who do not conceive of the endless varieties into which four or five colours can thus be wrought in the stony loom of ,nature4 ,amateurs must learn for themselves what these really are1 and how to judge of them scientifically1 when they pick up a fossil weighing1 perhaps1 a pound avoirdupois1 and looking like a champion-potato4 ,one or two hints may be ventured4 ,if the creature was an 8alcyonite10 its facsimile in stone should have the external rings or mouths clearly defined1 and1 if possible1 equi-distant4 ,such a one1 when cut1 will exhibit its tubes evenly disposed--not unlike a section of fir-wood under the microscope4 ,if it was an 8actinia10 then the body of the zoophyte should be central in the pebble1 and the tentacles will be not much melted away in a good slice4 8,sponges0 must be chosen principally for their colour2 in other words1 for the texture of the stone4 ,those which exhibit the reticulations1 white or straw-colour1 upon a very dark ground1 are the most effective generally3 but the most perfect one ,i ever saw had a blood-red pattern upon white4 ,for a single slice from this stone1 half a guinea was offered by me1 and refused4 8,choanites0 are easily discerned4 ,the 8ventriculite0 must have been a creature lower down in that scale than the choanite4 ,this fossil is repeatedly met with on our coast1 but ,i do not admire it enough to have retained a single specimen4 ,when alive1 it would appear to have resembled1 in stature and configuration1 an ordinary toadstool4 ,illustration3 ,,ventriculite4 ,,choanite4 ,the choanite was1 undoubtedly1 a beautiful creature1 and1 as ten thousand of the family testify1 abundant4 ,dr4 ,mantell said that its form1 when complete1 was that of a pear or fig1 and ,i think he obtained such a fossil from the ,lewes chalk1 where it was growing upright on a stalk1 in the way in which he afterwards depicted it4 ,looking over my collection1 ,i see that ,i have a similar one1 in black chalcedony-flint1 which ,i picked up at ,shanklin2 only1 in my specimen1 which came from the beach1 the delicate stem is1 of course1 gone4 ,the complete pyriform mound is rare1 for obvious reasons4 ,i never saw but three instances of it2 the above1 of my own finding1 was one4 ,another was in pellucid white agate1 spotted all over with the ends of the feelers4 ,the third1 which ,i also picked up1 had been pounded on a rough beach1 and crumbled in my hand4 ,choanites and ventriculites1 as animals1 are supposed to be extinct4 ,perhaps they are so1 though ,i do not see how any one can take upon him to pronounce as to what living organisms the great ,southern ,ocean may or may not contain4 ,the creature1 however1 which ,i admire most1 as perpetuated in these marine fossils1 is not a choanite1 but an actinia of the 8crass0 kind4 ,one of these1 large and of a globular form1 in which the tubular tentacles are distinctly shown1 and the colour is yellow in the agate1 ,i found1 in a sequestered spot1 where the deep sand must have received and sheltered it shortly after it had dropped from the cliff4 ,the outer whitey-brown crust was unbroken3 and as this crust is the cuticle of the pebble1 and which always wears away first1 ,i have no doubt of the specimen being a perfect one4 ,it could never have undergone a rub1 beyond that from soft sand or softer seaweed4 ,lastly1 striped jaspers and bloodstones are to be had for the seeking1 on our ,devonshire and ,yorkshire coasts4 ,the bloodstone is too well known to need any description2 neither is there much variety or interest in a rush-green1 spotted with red4 ,but the jaspers embrace several other colours1 and many lively patterns4 ,south ,devon has good ones1 resembling agatized wood4 ,scarborough has good ones1 some of them quite equal to the 8weed-agate0 of ,india4 ,at ,eastbourne1 a dark-brown variety is occasionally found1 which is highly prized1 because it approaches the character of the ,egyptian4 ,fine pebbles of this kind are also to be obtained in the neighbourhood of ,st4 ,alban's1 in ,hertfordshire1 but they are liable to be gritty4 ,beside the above1 which are true jaspers1 scores of jasper-flints in bright red1 yellow1 or green1 occur on almost any beach4 ,these are simply burnt flints1 containing a portion of oxide of iron4 ,their present condition is probably the result of extinct volcanic agency4 ,these are not nearly so hard as the true jaspers1 and their fracture is 8conchoidal40 ,for pleasing the eye1 perhaps the choicest stone in ,britain is a moss-agate1 of which the pretty name yields an accurate description4 ,the 8moss0 is some oxidized metal1 whose ramifications form a striking contrast with the limpid chalcedony in which it seems to float like seaweed or sponge4 ,when a fine specimen of one of these stones has been cleverly cut1 it is not unusual to obtain in its section the principal features of a mimic landscape--the clear sky1 and the fuscous earth4 ,some1 in addition1 display a setting sun1 c4 ,such stones get the name of 8landscape-pebbles40 ,on the shores of ,loch ,tay1 in ,perthshire1 remarkable ones are found--in which the imaginative ,highlander fancies he can trace the features of his beloved mountain-scenery4 ,great store is set by these1 on account of their pattern2 but they are mostly in sepia1 and white1 being never suffused with warm colours1 as are our marine specimens4 ,i may note here1 finally1 that to a true connoisseur1 the prettiest moss-agates are not so welcome as those which exhibit a bold and haggard style4 ,some of the ,french pebbles1 from the neighbourhood of ,dieppe1 would be very fine indeed1 only that they are spoiled by an undue quantity of black 8moss10 as black as mud4 ,most of the above-named treasures may be obtained by any one who owns a fair amount of perseverance1 provided he or she have an eye for pebbles4 ,and nobody need be discouraged from the search1 who likes them well enough to be willing to take a good deal of trouble to find them4 ,one-half of what are counted difficulties in this life have their root and growth in our constitutional laziness1 and may be overcome by a little energy4 ,we have all of us an eye for ripe cherries and red roses1 why not for pebbles8 99 99 99 99 99 ,let me now state in a few brief paragraphs the merits of the case4 ,people say there is luck in all things4 ,it may be so1 once or twice2 ,i never knew it hold for a continuance4 ,a course of practical experience in almost any department of life will bring a sure quietus to such crude fancies4 ,the searcher after pebbles must look to more sterling qualifications4 ,he should have good legs1 good eyes1 good judgment1 and--,i may as well say it at once--a good temper4 ,he should choose a likely part of an unfrequented beach3 and should go down at the right hour1 somewhere about half-tide1 when the tide is running out4 ,it is as well for him to walk with the sun a little behind him1 and on one side2 and ,i would recommend him1 if possible1 to avoid entertaining a north-easter in his teeth4 ,then he should be suitably rigged for the expedition4 ,if he has ever fished salmon1 he will need no wrinkles here3 but in case not1 ,i may specify the following4 ,strong ancle-boots1 with double soles and on real hob-nails1 and a stout woollen sock within2 rough trowsers1 which he will not grudge damping in the brine2 and a coat of fustian or tweed1 with ample pockets4 ,when the season is wintry1 add to these a warm wrapper for the neck2 and1 in one of his pockets1 a ,cording's india-rubber cape with sleeves4 ,a water-proof cap1 with a curtain to it4 ,no umbrella1 no stick2 but a light geologist's hammer2 and a canvas-bag1 worked with open meshes1 for the heavier specimens1 which otherwise he would have to carry in his hand4 ,if he is going far1 and it is as well to count upon eight or ten miles from home1 let him carry a flask of any liquid he likes best to imbibe2 together with a hunch of bread and cheese4 ,n4,b4 ,this will be found more sustaining than a meat-sandwich4 ,lastly1 a few mild cigars1 not omitting the usual implements for striking a light sub dio4 ,the fragrant weed is always a cheerful companion1 and doubly welcome when your path lacks flowers3 moreover1 it has historical associations1 which cabbages have not1 and will bring to mind ,sir ,walter ,raleigh1 who was a great man4 ,the above rules concerning the toilet will hold good for the fair sex1 mutatis mutandis4 ,only in addition1 ladies should engage some stalwart arm to lean upon2 and should on no account venture themselves among slippery rocks4 ,as for those knights and esquires who accompany the gentle dames on such a quest1 they must look to themselves4 ,i cannot now stop to warn them of their peculiar peril2 but they know what ,i mean4 ,it was among the ,ocean-isles that ,briseis led captive the stern son of ,peleus4 ,above all1 let the ,pebble-searcher have nothing on his mind when he sets forth3 no broken engagements1 no crying debts4 ,otherwise1 he may look in vain for moss-agates4 ,shakspeare1 when he has to account for a valiant warrior and politic general1 a crowned king to boot1 losing the great battle of ,bosworth-field1 ascribes it all to the ghosts who sat heavy on his soul4 ,any neglected or injured creature may prove on such occasions a vengeful ghost4 ,supposing your hours free1 the best are those in which the daylight is most powerful3 say1 from ten in the morning until four in the afternoon2 or1 to take things in moderation1 from eleven to three4 ,a beaching expedition made thus with determinate purpose1 once or twice in the course of six days1 ,i hold to be reasonable diversion2 and for matter of interest1 ,i know of no out-door pursuit which excels it1 not even ,insect-catching1 or ,fly-fishing4 ,the above hints being attended to1 one important point remains still to be considered4 ,it is absolutely necessary to understand pebbles in the rough4 ,the more peculiar a beach is in its contents1 the less will it exhibit to catch the eyes of one who has never learnt to appreciate them4 ,coloured seaweeds are enticingly bright2 pearly shells are as evident as trinkets2 but the external coat of a genuine pebble differs widely from its internal structure1 and may yield to the uninitiated no indication whatever of the value of the latter4 ,a crust of hardened lime or sandstone is a frequent envelope of the best specimens in one kind of zoophyte4 ,the stone itself is very likely mis-shapen1 and perhaps lies more than half buried in sand or shingle4 ,without knowing anything of the nature of these fossils1 you may occasionally pick up such 8darkies0 at a venture2 but you will never feel assured of them1 you will never be able to glean them from the multitudinous gravel1 as the determined ,fly-fisher gets the best trout out of a pool1 if you have not the pleasure of an intimate acquaintance with their species4 ,the readiest way of acquiring this1 and it is not born with anybody1 is to spend a wakeful half-hour1 once and again1 at the board of any civil lapidary1 and there thoroughly to inspect his casual store4 ,a trifling purchase will abundantly content him in return1 the more as he hopes to cut several pebbles for you4 ,observe1 then the peculiar way in which the outer crust of an old pebble is worn1 as compared with that of one which has newly descended upon the beach4 ,this crust or cuticle is highly suggestive1 if you can once come to understand it2 and as a hopeful indication of progress1 you may safely assume that you do understand it1 when you find that you can obtain pebbles such as nine persons out of ten somehow never 8have the luck0 to meet with4 ,sometimes a stone has parted with its original coating1 and has donned another3 and this operation may either be complete1 or still in fieri4 ,in the latter case1 there will always be some token2 either by the substance not lying evenly1 or by a change in the colour of the second envelope1 which becomes apparent on chipping off a fragment from its surface4 ,lose no opportunity of perfecting your judgment upon any form or texture that comes in your way3 for upon this will really depend what sort of collection you shall win from the bosom of the coy beach4 ,nothing is easier1 on an average coast1 than to pick up a score of showy-looking but inferior stones4 ,few things will be found more difficult than to bring home1 as the fruit of your morning's walk1 two or three valuable specimens4 ,and the cause of this lies not at all in luck1 nor altogether in mere labour2 for in all departments there are dunces who will still drudge hard4 ,it lies in the presence or absence of sound information on the subject4 ,a good rule is1 even early in your apprenticeship1 to eschew trumpery4 ,but beware of hasty conclusions4 ,some collectors will take nothing away with them from the beach which they do not feel quite sure about4 ,this is shallow practice1 for it assumes an amount of discernment which nobody possesses4 ,i can see as far into a stone wall in this sense as most people2 but ,i rather like to carry off occasionally an odd-looking stone which1 like ,bassanio's happy casket1 8rather threatens than doth promise aught40 ,such a pebble may turn out a prize4 ,the things which every one should reject without hesitation are those whose character is evident1 and with it their little worth4 ,mediocrity in pebbles is insufferable4 ,do not assume that the wet portion of a beach necessarily yields the best chances4 ,many pebble-hunters never get over this early delusion4 ,on a coast which is rarely trodden1 the upper range contains the richest store4 ,and in every case1 the tide runs twice in the twenty-four hours over banks which now look dry and dusty1 as well as over that narrow strip which you see glistening with saline moisture4 ,and while you cannot fail to remark a pellucid stone or fossil which is sprinkled by the wave1 if your attention is caught by anything lying high and dry1 the latter is probably worth stooping for4 ,walk rapidly over a poor1 unproductive beach2 but take your time and make good use of your eyes when you find you are in the land of plenty4 ,if you carry a hammer with you1 let it be of the right sort2 a well-tempered metal1 not too large to stow away in a hind-pocket1 and not armed with a spike4 ,when you have such a one1 it is tolerably safe to strike even a heavy blow on a large pebble in your other hand2 but if you do the same by a small one1 you may chance to maim your left palm for life3 because in this case there is little reaction1 and the blow you deal will drive the stone4 ,but even with large pebbles1 the preferable method is to plant one foot firmly on the stone1 leaving a portion exposed to your aim4 ,if your boots are of a sensible thickness1 nothing will come to grief4 ,never dash pebbles down upon others in order to break them open4 ,in the first place1 you risk a wound in your face from the rebound of a fragment in what mathematicians term the 8angle of reflexion10 an angle which you have probably not calculated2 but besides this1 you may by such imprudence destroy a valuable specimen4 ,you can open plenty of fossil flints and waterworn jaspers in the manner ,i have recommended above2 which knocks off a corner1 and shows you the true nature of the formations you are walking upon4 ,i have learned a good deal in this way4 ,lastly1 when you are landed upon a superior beach1 with the promise of a few hours of open weather1 use the golden opportunity and do your best4 ,solomon was quite right when he said1 8,whatever thy hand findeth to do1 do it with thy might40 ,it is evident that if you do not in foro conscienti think such a hobby worth the while1 you ought not to meddle with it4 ,i quite agree that making shoes is more profitable1 provided always that you have custom2 although ,i have known more than one instance of working craftsmen who at intervals picked up some very good pebbles too4 ,the above rules may sound marvellously simple4 ,i only wish that a few as simple were generally acted upon4 ,we might then hope to see some noble collections of really instructive pebbles from our as yet little known sea-coast4 ,,chapter ,,iv4 ,,which ,,be ,,the ,,best ,,beaches ,,in ,,england4--,,concerning ,,stationary ,,and ,,movable ,,shingles4 ,the variety exhibited by ,nature seems to be almost infinite1 take what ground we will for observation and comparison4 ,this has been frequently noted in both the animal and vegetable departments of ,creation4 ,i believe it to be no less true of the mineral1 especially when we embrace under that head fossil remains4 ,if there be any feature in ,british scenery which to a cursory observer appears uniform and identical everywhere1 it is the yellow-looking beach along the coast line4 ,yet it will be found on trial that our beaches differ widely from each other4 ,no two are quite alike4 ,devonshire is not more diverse from ,yorkshire1 or ,norfolk from the ,isle of ,wight1 than are their respective beaches1 as to what these contain4 ,nay more3 on the range of the ,sussex coast--a very monotonous range--,i am acquainted1 at this present time of writing1 with four beaches1 which ,i do not scruple to pronounce totally different one from another4 ,if ,i were shown the pebbles1 ,i could generally tell from which quarter they came4 ,but to become aware of variety1 you must observe certain admitted facts4 ,the frequenters of our coast-scenery1 not one-tenth part of whom can plead the sad excuse of being invalids1 usually know but little of the character of a beautiful beach lying in their intermediate neighbourhood4 ,ordinarily speaking1 a man will be better informed concerning the plains of the ,pampas1 or the windings of the ,coppermine ,river1 than he is upon the nature of the soil which is under his feet1 or of the bough which hangs over his head in the forest4 ,and the reason of this is obvious2 we neglect the reality for the sake of the appearance4 ,we greedily devour certain stereotyped works as a kind of royal road to knowledge2 but we omit to notice and inquire into the sensible objects which are strewn along our daily path4 ,of course1 we pay the penalty in kind4 ,two-thirds of our 8book-knowledge0 is merely conceited ignorance2 not the genuine gold1 fit for current coin1 but a baser metal washed over1 which will stand no one in stead for long4 ,i will now describe accurately three beaches which occur in three different counties4 ,any one who makes their acquaintance hereafter1 especially if in quest of pebbles1 will1 ,i believe1 recognize the original of each sketch4 ,one of them now lies far away2 but to think of them is like dwelling on the still vivid impressions of a dream4 ,i am in a district of the ,new ,red ,sandstone1 and as far as my eye can reach ,i see towering cliffs of a kindred formation1 wheeling round or jutting out in foxy-coloured masses1 while the innumerable points of shingle glow like an autumn stubble at their feet4 ,i commence searching near the bright water-line1 and what with the simple grandeur of the scene1 and what with the balmy breath of the south1 ,i insensibly stray onward for several miles1 until the increasing weight in my pockets suggests a pause4 ,now ,i will sit down under the shadow of that mid-way rock1 light a cigar1 and inspect my treasures4 ,no sooner said than done4 ,what a calming sensation a whiff of good tobacco induces on these burning days6 ,but what have ,i got8 ,above thirty globes of chalcedony1 blue and white1 as oval as bantams' eggs4 ,i select half a dozen on account of some beauty or peculiarity1 and fling the remainder into the sea1 there to undergo a fresh impregnation4 ,next1 sundry bits of the red and white conglomerate4 ,let me advise everybody who has the opportunity1 to pick this up4 ,when sliced and polished1 the surface obtained beats the inlaid work of a cabinet-maker all to nothing4 ,next1 a couple of choanites1 one in the dark 8rag10 ribbed like sea-weed2 the other in pretty light-brown moss-agate4 ,these two go into my breast-pocket for safety4 ,lastly1 what has never been out of my hand since ,i found it--a huge1 knotted jasper-agate1 of five pounds' weight4 ,i will only add that the beach here described is a first-rate one in its way1 although not my absolute favourite4 ,i had1 however1 never seen it before1 and have never visited it since2 moreover1 ,i had not a hammer with me1 nor any refreshment beyond a cigar1 after tramping over many miles of deep shingle2 consequently1 ,i do not suppose ,i did justice to the contents of that bit of coast4 ,but where am ,i now8 ,two hundred miles away1 and the scene is changed4 ,i have just rounded a headland1 on whose summit the ripening corn-field is waving and gleaming like the tuft on the head of a woodpecker4 ,dizzy precipices of chalk stand like sugar-loaves against the blue sky1 here and there cleft in a tortuous1 yawning chasm4 ,beneath1 the beach seems to slumber1 so gentle is that lisping murmur1 where the long billowy swell washes the face of the skerries1 and lifts up and down their heavy fringe of tangle like a giant's beard4 ,two hours are mine1 as we mortals reckon1 before ,i am expected at the evening meal4 ,this time ,i have my hammer with me--no clumsy carpenter's tool1 which might rend or splinter1 but a tempered steel4 ,i did but walk a couple of miles in all4 ,i found sundry pieces of perfectly white agate1 one of which proved good enough for a seal4 ,i broke open a score or two of jaspers1 and was rewarded at last by a fine slab of the rich brown 7quasi-,egyptian74 ,then ,i hunted up from the shingle a pocketful of 8sponges10 and a choanite in dark purple flint1 which is rare4 ,and then time was up1 and scaling the cliff by a well-known gap and pathway1 ,i returned home to crab-pie and a cup of tea1 and the welcome of a dear1 kind face4 ,this part of our coast is much visited now by pebble-seekers4 ,now ,i have crossed a channel of the sea1 and have looked upon the mighty three-deckers1 and all the flower of the yachtery of ,england2 and ,i have strolled through a smart modern town1 and have passed a meditative half-hour in a very ancient village1 and then1 at a sharp turn1 ,i have quitted the high-road1 with its hot milestones1 and picked my way through a blossoming lane where the nightingales were singing2 and ,i have scrambled over the edge of a snipe-bog1 and hurried past the mouth of a diluvian estuary1 and here ,i am1 stretched at full length on the choicest bit of beach in all the realm of ,queen ,victoria4 ,in front of me are soaring pinnacles of chalk1 ribbed and dotted with primeval flints1 like the gun-muzzles in an upper deck4 ,behind me rises another barrier1 formed of the dark 8greensand20 and on one side1 for the space of a mile1 these lofty brows have dipped and disappeared1 that the red edge of the wealden might crop out from a wide tract of rush-grown water-meadows4 ,through the heart of these latter steals a rivulet1 beloved of stray wild-fowl1 but not tenanted by anything so lively as a trout4 ,the position of this beach is all that can be desired1 and its contents will not disappoint expectation4 ,it has sometimes reminded me of one of those angular nooks formed externally by the converging hedges of a cover and a crop1 where you are sure to meet with the hares and pheasants which have come out to feed on your wheat-stubble or turnips4 ,here1 however1 instead of the scuttling game1 you must look for matchless pebbles4 ,often as ,i have paced this charming strand1 the occasion of my first stepping upon it was pure accident1 as1 indeed1 are some of the pleasantest turns in life4 ,i remember one summer's day1 when the solid cliffs seemed to be pulverizing under the heat1 and the air-vessels in exposed sheaves of bladderwrack were splitting and popping like crackers1 ,i found four or five specimens within a couple of hundred yards which ,i have never since surpassed1 seldom equalled4 ,two of these were deep red choanites1 conveying the idea1 not of dull 8oxide10 but that the animal's blood had suffused the agate2 another was a particoloured madrepore1 another1 a moss-jasper4 ,this bay1 however1 possesses peculiar advantages4 ,in addition to the fossils which drop from time to time out of its own overhanging cliffs1 it is fed in a remarkable manner from other sources4 99 99 99 99 99 ,until of late years1 ,sussex has been the usual resort of those who desired to collect pebbles for the cabinet4 ,the capabilities of this coast vary with every twenty miles4 ,the ,brighton beach was once famous for the supply of 8landscape-pebbles20 but in the lapse of years its fecundity has been sadly impaired4 ,the best chance remaining now is that of an occasional waif during the ,march winds on the sweep fronting ,brunswick ,terrace1 and for about half a mile toward ,shoreham4 ,bognor has long reefs of rock at low water1 and1 by the usual rule1 it ought to yield petrified sponges2 for ,i think that1 generally speaking1 the locality determines the animal4 ,but the infirmity of the ,bognor shore is1 that its pebbles are chafed and worn to skeletons by the furious storms which assail this unprotected coast in winter4 ,no fossil with a delicate constitution can long withstand the effect of these gales and plunging seas4 ,off ,beachey-head1 in the other direction1 is found a variety which ,i have not met with elsewhere4 ,the specimen shown to me was vermicular2 the creature1 which had perhaps been a 8sabella10 lying in distinct coils1 not unlike macaroni1 in the blue agate4 ,this pebble was a very large and perfect one2 and the man who had picked it up1 and paid perhaps half-a-guinea for the dressing of it1 was desirous to realize a five-pound note4 ,i wish much that it had found its way to the ,british ,museum4 ,there is no stone there resembling it4 ,at ,deal and ,ramsgate1 8fortification-agates0 may be readily met with1 and sometimes a bit of carnelian3 but this last1 bright and homogeneous1 is rare4 ,the ,hastings beach is mainly worn out4 ,aldborough1 in ,suffolk1 was wont to be famous for its coloured agates2 and ,fifeshire1 and part of ,forfarshire1 for eyed jaspers3 but many years have gone by since ,i visited either of these counties1 and ,i would not venture to speak with confidence concerning their actual beaches now4 ,very good pebbles are picked up at ,cromer2 and1 occasionally1 carnelians1 both red and white4 ,felixstowe1 a little lower down the coast than ,aldborough1 abounds in yellow agates1 some of them beautifully translucent1 and rivalling the carnelian in smoothness of texture4 ,at ,scarborough1 remarkable specimens both of the agates and jaspers are obtained by those who know where to look for them4 ,filey has the same charms for enticing strangers to wander onwards along its pretty coast4 ,indeed1 all the ,yorkshire beaches deserve and will repay a visit1 both in fossils and transparencies4 ,carnelians are peculiar stones as to their habits1 if ,i may use such an expression in speaking of inanimate substances4 ,it were absurd to doubt that plenty of them still haunt our ,english coast2 but where they manage to hide themselves has often perplexed me4 ,the method of searching for them is as follows4 ,instead of keeping the sun behind you1 he should now be full in front1 like a candle in your eyes4 ,but you must not look at the sun3 you must look along the surface of the beach2 and whenever a bit of carnelian peeps out from the shingle1 you will at once descry it1 owing to the position of the great light4 ,i tried this once at ,blackgang ,chine for three-quarters of an hour1 and in the course of that time ,i filled both my waistcoat-pockets with red bits4 ,it is true1 none of these were larger than pudding-raisins1 and some of them scarcely more brilliant2 still1 the search was very diverting4 ,if the shingle had not been unusually damp1 ,i might have lain down every now and then and looked along its surface2 in which case ,i should1 doubtless1 have succeeded better4 ,the mention of ,blackgang leads me to speak of the ,isle of ,wight1 as the choicest storehouse for this kind of fossils in ,britain4 99 99 99 99 99 ,if it be true1 as some geologists aver1 that the pearly 8,vectis0 was at one time joined on to our ,hampshire coast1 from which it afterwards broke off like a loose morsel from the side of a cake1 that would go far to explain the abundance and beauty of its organisms4 ,for1 upon such a separation from the mainland1 the industrious sea would have great opportunities of denuding the face of the cliffs and sucking the orifices of the chines4 ,also1 this circumambient sea is peculiar in its character hereabouts2 and the crystallizing waves impart an unusual lustre to rolling agates and jaspers4 ,the beaches of the ,wight are circumscribed in extent1 which is a great relief after the interminable ranges on the ,sussex coast4 ,the difference is as great as that between a quiet forenoon spent in the museum in ,jermyn ,street1 and the laborious distractions experienced if we pass a similar interval of time amidst the endless rooms and innumerable cases on the first floor of the ,british ,museum4 ,the village of ,sandown1 from the flag-staff on as far as ,red ,cliff and ,culver1 exhibits a tempting and instructive shore4 ,in winter1 it is better to commence at the dyke1 and end with ,red ,cliff2 but in summer1 you may walk the whole range with advantage4 ,here1 a couple of hours may be taken to as many miles2 and if you do not shut your eyes1 you must fill your pockets4 ,but look with resolution for good ones4 ,from ,sandown to ,shanklin1 in the opposite direction1 it is scarcely inferior4 ,it was once even better2 but1 lying so near at hand1 it has been unceasingly hunted over2 and to look for a fine pebble there now1 is almost like hoping to find a hare sitting in your kitchen-garden4 ,many tons' weight of beautiful fossils have been gathered within the compass of a morning's walk here1 in the last few years4 ,at the foot of ,shanklin ,chine occurs a singular collection of limestone pebbles1 siliceous within1 which are well worth examining4 ,extraordinarily-tinted choanites are here sometimes detected in the heart of most unattractive and mis-shapen blocks4 ,i once asked a successful beaching lapidary there1 how he knew them8 ,he declared that he did not know them at all2 but that whenever he saw fresh bonzes thrown up1 especially if with a deep-sea mark upon them1 he would break them all1 and generally obtained a superb specimen among them4 ,the objection to this murderous process was1 as he confessed1 that some of the finest were wont to be destroyed4 ,latterly1 ,i thought ,i discovered a way to recognize the presence of any such choanite4 ,it is to look closely for a peculiar depression in the stone which is connected with the principal air-hole belonging to the fossil4 ,but this method demands time and care4 ,onwards to ,luccombe1 the beach disappears1 owing1 ,i imagine1 to immovable depth of sand4 ,at ,luccombe ,chine1 it partially revives3 but do not linger here4 ,go on to ,bonchurch1 and as you approach that lovely hillside1 rouse all your energies4 ,here comes in a mile of sand1 small shingle1 and half-buried pebbles1 which will put your skill to the test1 if skill you have4 ,look out for symptoms of the 8tubular0 structure1 and diverge now and then to the pools among those weedy rocks4 ,many a beautiful 8actinia0 in flint lies there snug enough1 wedged in a dark cranny1 and coated over with glutinous moss4 ,you must really not be idle now4 ,do not even light a cigar1 but hammer and delve and scrape away2 only do not give in until you lay hold of something worth the while4 ,two zoophytes1 of the agatine-siliceous kind1 were picked up on this spot about a twelvemonth since1 for which large sums of money were offered in ,ventnor the same day4 ,for one of this sort1 an ,american gentleman1 not long ago1 gave eight pounds sterling4 ,but there is in ,brighton1 or was till very recently1 a pebble from the ,rottingdean beach1 for which fifty guineas have been offered to its possessor1 and refused4 ,i have not seen it myself1 but ,i am told that it is a spotted pyriform choanite2 the material1 very beautiful agate4 ,at ,ventnor1 red gravel and diminutive carnelians1 some of them not bigger than pins' heads1 await the pebble-seeker4 ,occasionally an agate is found here which is 8chatoyant10 like an opal1 but this is scarce4 ,i once tried the ,freshwater strand1 8ultima thule10 but ,i only met with doubtful1 ragged flints4 ,the north side of the island presents on its shores a surface chiefly of mud and estuary drift1 delightful to solans and sea-gulls1 but not profitable for the cabinet of the mineralogist4 ,i ought here1 in common gratitude1 to say something of the beauties of the ,garden ,isle4 ,but1 though some of the happiest hours of my life have been passed there1 ,i grudge to dilate upon the theme4 ,i could not1 if ,i would1 convey to a stranger a sense of the unutterable attachment which ,i feel for its swelling downs and curling seaward bays4 ,much of the charm of our old ,english scenery1 which is fast disappearing elsewhere before the railway and the canal1 is still to be met with in this sequestered island4 ,here are uncultivated rocky slopes1 proffering rare wild-flowers2 ivy-mantled cliffs and moss-grown brambles2 bays which in winter witness the howling storm1 and sometimes the fearful wreck1 but in summer are invested with the calm beauty of a moonlit lake4 ,the inhabitants also1 many of them 8aborigines10 have a primitive1 unsophisticated character in the inland villages2 while1 on the coast1 this is chequered by that roving disposition and semi-superstitious bent which are always to be found among sailors4 ,oddly enough1 the story of a pebble illustrates this trait of character4 ,some years ago1 ,i was calling on a lapidary in ,sandown who had done a good deal work for me1 and done it well4 ,his account was settled1 and ,i was wishing him good morning1 when he drew my attention to a remarkably beautiful pebble1 ready cut and polished1 and begged my acceptance of it4 ,now the stone1 displayed on his board along with other specimens1 could not fail to sell2 and was worth to him1 ,i should say1 perhaps a sovereign4 ,i was very unwilling to take it1 but there was no refusing without offending an old friend2 so it went home in my pocket4 ,but somehow curiosity was stirred in my mind when reflecting on the circumstance afterwards4 ,why should he wish to make me a present8 ,or1 allowing for goodwill taking so straightforward a course1 why part with a stone of so much moneyed value8 ,a few days after ,i dropped in again4 ,my friend was out3 but ,i found his wife1 and stayed for a chat4 ,presently ,i referred1 quite cursorily1 to the gift which her husband had made me1 8and10 said ,i1 8,i wish only it had been something of less value40 ,the gentler sex are sometimes more communicative than their mates4 8,ah6 sir10 replied ,mrs4 1 8there was reason for giving you that1 may be4 ,anyways1 ,i'm real glad that it's gone from us40 8,indeed6 how is that80 8,why1 that stone was an unlucky stone for us1 and ,i wished it to go1 somehow40 ,then ,i learned from her the following singular tale4 ,two brothers1 sea-faring men1 were great friends of the lapidary and his wife4 ,one day1 one of these brothers found this pebble on the beach1 and had it cut4 ,it turned out1 as ,i have said1 a remarkably fine specimen4 ,it was what they call a 8deep-sea0 pebble1 and the 8choanite0 of a reddish hue lay exactly central in the bonze of white limestone4 ,the sailors were both of them quite fond of it3 and when they went to sea again1 the handsome pebble went with them1 and was laid 8o' nights0 on a shelf by the hammock4 ,their boat was upset3 one brother was drowned3 the other righted the craft and got to shore1 not without difficulty4 ,several articles were missing1 having gone to the bottom2 but the pebble was safe4 ,the survivor brought it back to the lapidary1 and made him accept of it1 being unwilling to retain it himself4 ,the lapidary took it1 and put it aside3 but his better half found it out1 and insisted that he should neither sell it nor keep it4 ,so1 he gave it away4 ,this stone ,i afterwards parted with to a ,london collector3 not wishing to preserve so sad a reminiscence4 ,i took a fossil in exchange1 which ,i almost immediately lost4 ,so1 nothing connected with the mysterious choanite was 8lucky40 ,perhaps every feature in 8,vectis10 from the matted festoons on its honey-combed rocks to the 8witchery of its soft blue sky10 predisposes a frequent visitor to approve also of its pebbles4 ,but it is an unprejudiced fact1 that in texture and colour they excel those which are found on the ,sussex beaches4 ,and while ,i think highly of our ,devonshire jaspers1 ,i remember a jasper-agate1 gathered some years ago at ,sandown1 which might challenge all such stones of native growth in our ,london museums1 and bear away the palm4 ,many a calm summer's evening1 many a stormy winter's forenoon1 have ,i whiled away in absolute contentment on that most interesting shore4 ,in the hot noons of ,july the bathing is delicious2 and after your bath1 the shadow cast by overhanging cliffs1 and a fanning breeze from the sea1 make a ramble onwards irresistible4 ,but ,i found winter as pleasant in its way4 ,when the gust roared1 and chimneys smoked1 and the heavens looked dark and disturbed1 it was inspiriting to go forth roughly clad1 and to watch the fitful changes where the weather-gleam strikes upon ,culver2 or to mark how that treacherous mist would come creeping round ,dunnose1 till the 8white horses0 rose on the sea1 and the heavy squall which had long been packing in the offing burst with a wild cry1 driving in a yet heavier element with tatters of oar-weed and splinters of broken dyke against the face of the immovable cliff4 ,after passing ,shanklin1 the style of scenery as far as ,luccombe and the ,fishers' huts1 is quaint and picturesque4 ,here the 8,gault0 makes its appearance1 and the hill-paths are in consequence slippery and dangerous4 ,after this1 succeed several miles of fairy-like beauty4 ,and then1 the stern grandeur of ,black-gang1 the coast-line trending away in a range as savage as that of ,calabria4 ,and last1 the chosen home of the poet1 sublime ,freshwater1 and rainbow-tinted ,alum-,bay4 99 99 99 99 99 ,having said so much on the pleasure of beach-rambling1 it may be well to put tourists on their guard in two important particulars4 ,the first of these touches personal safety4 ,no one should set out upon what may prove a prolonged expedition without first ascertaining1 on ,kalendar authority1 the hours of the tide for that day4 ,there are sundry points on the coast of the ,isle of ,wight1 for instance1 where after a couple of hours' progress1 on scientific thoughts intent1 the pedestrian may find himself hemmed in by a jutting precipice in front1 while the advancing tide behind has gradually cut off all hopes of a retreat on 8terra firma30 and as the face of the cliff is seldom such as admits of being scaled1 it will then fare badly with him if he be not 8the king of fishes40 ,the other matter respects fatigue4 ,hearty exercise is desirable2 not so that which results in utter exhaustion4 ,my own experience is as follows3--,i have climbed to the summit of ,sca' ,fell1 and then walked back1 footsore and fasting1 to ,keswick4 ,i have swum a mile before breakfast4 ,i have ascended ,mount ,etna at midnight in ,december's snow4 ,but for sheer fatigue1 pulling at the muscles1 and drying up the marrow1 there is nothing equal to ten miles of stiff shingle1 while a foggy north-easter currycombs your face1 and perhaps your shoe-leather has been laid open by the edge of an inauspicious flint4 ,if in addition to all this1 forgetting 8,cording10 you have sallied forth non bene relict parmul1 your condition is by no means enviable4 ,therefore1 whoever intends to go beaching in earnest should look to his outer man1 and carry with him certain creature-comforts1 not omitting to include in these a supply of good tobacco4 ,yet one word more upon this head4 ,have a due regard to the well-being of your eyes4 ,they are1 as you will not fail to acknowledge1 the working party on these occasions4 ,manage how you will1 they must be subjected to a great stress and strain4 ,give them half an hour's respite1 if possible1 while you sit down and inhale the 8weed40 ,it is unpleasant to find1 after too intense a service on the part of your 8daylights10 as you return homewards along the meadow-path1 that a beach you have left two or three miles behind you is all coming back1 whether you like it or no1 upon your organs of vision4 99 99 99 99 99 ,on the whole1 summer is the most fruitful season for stocking a cabinet1 on account of the more powerful illumination cast upon the objects of your search4 ,but in winter the beach itself is very likely to be in better condition1 for it is oftener agitated1 and many specimens will come to the surface which in calmer weather lie buried under sand4 ,it is important to train yourself to attentive observation1 and after long habit the ear will listen intuitively4 ,if you hear the sea make a dull1 booming noise during the night1 be on the look-out two or three tides later1 when the first shingle now thrown up has sifted and settled down4 ,large pebbles will then be found on the top of all1 the process being much like that which takes place on shaking a basin of lump sugar4 ,but it will be well for you to be always on the alert4 ,the seaside elements must be coaxed and humoured1 if you hope to get anything by their agency4 ,a beach itself is exceedingly capricious4 ,on some days you may walk for miles and remark nothing worth picking up2 perhaps the next day1 over the same ground1 so great will be the profusion of fossils as to suggest the idea that since your last visit a petrified shoal had returned to life1 swum into the bay1 and there been once more stifled in gurgling lime1 or liquid silex1 and penetrated by the metallic 8moss40 8,the sea yields its harvests without sowing or planting10 and seaside scenery is exquisite if you have come upon it where it is unsophisticated4 ,happily it is in such sequestered 8,edens of the western wave0 that the most desirable pebbles are met with4 ,i have gathered rare specimens where the dor-hawk was wheeling overhead1 and saucy sea-gulls screeching almost in my face2 while a cunning crow would watch from a projecting ledge of rock to see whether ,i was about to capture1 and afterwards throw away1 anything which might serve him for a luncheon4 ,the terraces of ,margate and ,ramsgate are invaluable to the tired artizans of ,london seeking their well-earned recreation2 but no poet could venture to affirm of them what ,scott said of 8,brignall banks10 that they are 8wild and fair40 ,but quit these populous thoroughfares1 and get away to pearly ,beachey ,head1 or roam the lone strands of ,yorkshire or ,devon1 or go and lose yourself among shadowy nooks and gleaming bays in the sweetest of all islands1 and you will possess the genuine colour and scent1 and music and mystery of the sea1 as the ,creator has framed and blended that wondrous element4 ,you need not look for pebbles unless you like2 sometimes it were better not4 ,but saunter down to the water's crinkled edge1 and inhale that indescribable odour from old rock1 slippery now with dulse and ribbon-weed--,piesse and ,lubin distil nothing to equal it--and con the page in ,nature's volume which lies open before you2 it will never give you a head-ache1 nor a heart-ache either4 ,here1 after presently stripping to the elbow1 you may surprise a hermit-crab1 or catch the spotted 8goby0 in his dark saline pool1 but please let him go again2 you ought to give him his freedom1 if only out of gratitude2 for all this time your own tired body is being braced and refreshed1 and your mind1 yesterday jaded and careworn1 is winning back its elasticity under a sense of blessed repose4 ,i will now mention some peculiarities in the nature of our beaches1 which ,i have noted from time to time in the book of my experience4 99 99 99 99 99 ,a ,,beach is supposed to be a permanent accumulation of pebbles and small shingle1 due to such cliffs or banks as are near at hand4 ,and this general definition would be so far scientifically correct1 if nature were stagnant like the surface of a deserted mill-pond4 ,but1 as ,nature is always at work1 always shifting the scenes1 the above definition1 although it sounds like a truism1 does not hold good in either of its clauses4 ,the accumulation which we look upon is not permanent1 nor is it always due to a neighbouring source4 ,sometimes the collection of stones which we find heaped up in an immemorial bay has been washed round--much of it1 perchance1 recently--from a distant quarter4 ,and this might be taking place under our very eyes1 and we not know it1 just as we do not see the grass grow4 ,except in very calm weather1 beaches are continually travelling1 and they travel rapidly along certain lines of coast1 until they arrive at a terminal point or headland4 ,to get round this latter takes time1 but they do get round it at last1 with the help of strong gales prevailing in one direction1 and under the rushing tides of an equinox4 ,now if we suppose a few acres of shingle to be once fairly carried past such a promontory1 and discharged into the curve of an elliptical bay1 they will be locked in1 and may1 perhaps1 never get out again4 ,i have myself no doubt that ,sandown ,beach is fed and replenished in this manner3 and the bay being deeply indented with the points of ,culver and ,dunnose1 prominent at opposite extremities1 egress is difficult4 ,yet most persons might naturally suppose that whatever they find on the beach here is due to its overhanging cliffs4 ,some of the best pebbles travel fast1 and are1 in fact1 migratory1 till they reach such a 8nidus0 as ,i have described4 ,this is owing to the rounded form which fossils usually assume4 ,angular lumps rather remain stationary4 ,jasper ,i suppose makes few excursions3 while the agates and oval choanites are continually on the move1 and may have visited a dozen different localities before they are picked up4 ,i have hunted a bit of yellow agate in this way for above a mile in the course of a few weeks1 dropping it again on purpose1 and never finding it in the same place4 ,beside the above real motion of a beach1 there is an apparent total change for a time which is by no means uncommon in exposed situations4 ,this is1 when an inshore gale drifts the sand and conceals for a day or two the entire mass of shingle4 ,it is a provoking circumstance when it occurs1 but it seldom lasts long in its effects4 ,the sudden re-appearance of half a mile of solid beach1 as if by magic1 on a change of the wind1 has sometimes surprised me in spite of past experience4 ,in average weather1 when a beach is not migrating1 the rise and fall of the pebbles in the same lines is very observable4 ,the only change then induced in a stratum of shingle is by the suck and draught of the sea4 ,this latter1 however1 is unceasing1 as may readily be tested by bathers2 everything which you set your foot upon under the wave being in a gentle rolling motion4 ,it yields an amusing diversion in the water1 to play the pebbles about under one's feet4 ,the effect of it1 however1 is not so quaint as that which ,i remember experiencing many years ago in ,loch ,long1 where are no pebbles1 but plenty of mud4 ,here1 wading out in the shallows to arrive at swimming depth1 ,i put one foot after the other on the backs of some unsuspecting flounders lying on the sand1 and laughed aloud at the tickling sensation as they glided away from under me4 ,but all motion is a source of interest and charm1 especially while we are on the sunny side of forty4 ,i believe that this forms one feature of delight in the capture of winged insects4 ,exquisite as is a good ,british collection1 the dry side of the science1 whatever learned entomologists may say1 is not the most inviting1 and would attract comparatively few persons after a time4 ,in like manner1 who would care for cover-shooting1 if all were sitting-shots8 ,but the 8runners0 and 8fliers0 impart a zest4 ,even here1 my friends the seaside pebbles have a claim to please3 for1 although inanimate1 they are not altogether devoid of motion1 as ,i think ,i have shown4 ,,chapter ,v4 ,,concerning ,,certain ,,petrified ,,zoophytes1 ,,now ,,generally ,,supposed ,,to ,,be ,,extinct4 ,the petrifaction of an animal form or structure has always appeared to me a most singular process in ,nature4 ,the change of such substances as cellular tissue1 or fish-bone1 or cartilage1 or a light1 leathery skin1 into minerals such as silex and agate1 seems at first like magic4 ,scott1 when describing the 8foliaged tracery0 in the east oriel of ,melrose ,abbey1 tells his reader3 8,thou wouldst have thought some fairy's hand ',twixt poplars straight the osier wand ,in many a freakish knot had twined1 ,then framed a spell when the work was done1 ,and changed the willow wreaths to stone40 ,but there is no magic in ,nature2 and when we meet with undoubted phenomena1 however strange they may appear1 in any department of her realm1 we must behave ourselves like matter-of-fact persons and set about accounting for them logically4 ,in a genuine petrifaction there are two ways of doing this1 or1 in other words1 there are two different modes in which ,nature may have acted so as to produce the result which we are considering4 ,one of these is that of a simple substitution2 the particles of one substance being gradually removed1 and those of another taking their place4 ,this must have been the process which obtained in many well-known instances3 as1 for example1 when the thin1 leathery shell or husk of an echinus is found perfectly rendered1 both as to its general outline and minute markings1 in solid flint or limestone4 ,we feel quite sure that the original husk has perished2 but here is its second self4 ,the other mode is that of actual transmutation1 wherein no part of the original substance is destroyed or removed1 but its physical conditions undergo a total change1 by means of either infiltration1 or crystallization1 or perhaps both of them combined4 ,this process has obtained in such cases as a petrified shark's tooth1 or a fossil trilobite from the ,wenlock4 ,the tooth1 which was once bone1 is now a kind of metallic stone3 the trilobite once1 as we suppose1 shell and cartilage1 is now a something between limestone and cast-iron4 ,and this change is very wonderful2 but1 as was said above1 there is no magic in it1 no more than in the hardening of an infant's skull1 or the solidifying of the arm and leg-bones by the absorption of phosphate of lime4 ,besides1 the stone and metal now present are still something different from what we ordinarily mean by those terms3 the petrified tooth is not like a flint-stone1 neither could you cut horse-shoe nails out of the trilobite4 ,in fact1 every real process has a character of its own3 a something which distinguishes it from any other1 despite of general resemblances up to a certain point4 ,petrifaction1 then1 being assumed1 as an operation which has really taken place after one way or another1 it falls next to be considered1 what was the original nature of these fossils8 ,i mean the objects which we find thus preserved in our seaside pebbles4 ,what was the department in ,creation to which they belonged8 ,was it animal or vegetable before it thus became altogether mineral8 ,for myself1 ,i will at once say that ,i have no doubt it was animal2 but not an animal of a very high order4 ,the specimens which ,i now possess1 and which are all of them chosen1 some of them rare1 ,i should assign to such creatures as the 8zoophytes0 or 8polyps10 both radiated and globular4 ,and ,i know of nothing1 among many hundreds of specimens gathered from a dozen different beaches1 which presents the evidence of having belonged to vegetable organization1 with the exception of sundry varieties of petrified wood1 which speak for themselves1 and could not be mistaken by anybody4 ,i will now state two or three reasons1 which to my own mind are conclusive1 for the above decision4 ,in the first place1 then1 the structures here perpetuated in stone are of great delicacy1 and they have been immersed in ancient seas1 as is testified by the localities in which they are obtained4 ,now vegetable structure as fine as this1 if immersed long enough for any such change to come in question1 must have utterly perished by maceration1 and then the petrifaction could not have taken place4 ,i know that part of the stem 7and ,i think fruit7 of one species of 8conifer0 has been found in the ,isle of ,wight in the condition of a fossil2 but this belonged to a hardy class of plants1 and the lobes or plates which composed its bark and husk are themselves highly siliceous1 to say nothing of the presence of iron in the rind of most of these stems4 ,so that the process would be a long one1 and the fibrous material of the tree would stand it well4 ,but in these pebbles some of the threads or tubes run from the size of small twine to that of the rays in a spider's web2 and no vegetable substance with which ,i am acquainted1 excepting the filaments of 8asbestos0 7which is a vegetating mineral7 in rock-crystal1 could abide and retain its form1 so as to allow of the changes by infiltration or otherwise which have passed upon the original structure4 ,if it be said in reply to this1 that we have the exquisitely delicate 8dendritic0 markings1 as of leaves and filaments of shrubs or sea-weed1 in the heart of the white chalcedony 8mocha-stones0 from the ,east1 the answer is evident3 these are not really vegetable traces1 but only resemble such in their configuration and colours4 ,they are simply shoots and ramifications of a metal1--as iron or manganese4 ,those in the 8weed-agate0 of ,india1 which exactly resemble sprays of fine sea-weed1 are produced by 8delessite40 ,indeed1 it is both diverting and instructive to observe how ,nature permits1 and even seems to abound in1 curious coincidences and striking resemblances between things of entirely diverse character4 ,the dried polyp1 called 8encrinoid echinoderm10 bears a wonderful likeness to one species of ,indian corn4 7,see the plate at p4 #acg of ,mr4 ,rymer ,jones's beautiful work on 8,the ,animal ,kingdom407 ,and the other day1 when ,i was enjoying a leisure hour in the ,british ,museum1 ,i suddenly remarked that the 8carapace0 7back-shell7 of the splendid fossil specimen of the 8,holoptychius nobilissimus0 in one of the cases might serve for a sketch of the back of a capercailzie1 where the grey and purple feathers overlap one another4 ,yet here is no real connection whatever4 ,only ,dame ,nature had gone to play4 ,secondly4 ,the preservation of these 8polyp0 forms1 in the manner in which they have been preserved1 seems to me to be due to a feature or circumstance which is strictly animal and not vegetable4 ,i refer to the fact of the creature1 while it was alive1 inhabiting a house1 a house built by himself1 or emanating from his own substance4 ,for1 just as we could know but little of the existence or habits of 8shell-fish10 were it not for their shells1 so ,i think we may assume that the choanite must1 when alive1 have dwelt in a tough1 horny 8coperculum10 answering to the shape of his body and the number of his 8polyps0 7if he was a compound creature71 because otherwise he would have been like a jelly-fish or naked slug1 and his 8polypary0 could not have been preserved in a stony fossil4 ,of course1 whatever was merely flesh1 or adipose matter1 has long since perished2 but the house or shell in which it whilome dwelt remains4 ,thus1 the 8echinus0 built himself a dome1 such a residence as a hedgehog would require to live comfortably in1 and through the various orifices of which his spines could be protruded at pleasure4 ,the 8ammonite10 being shaped like a snake1 preferred living in a shell of that form1 where the creature when coiled up was safe4 ,the 8alcyonite0 had a more exquisite taste in house-building1 answering1 we may be sure1 to the complex and beautiful structure with which the great ,creator had endowed him4 ,his home was a palace1 containing long galleries and secret doors and wheel-windows2 and here some of the delicate tubes are fringed at their extremities like the petals of a flower4 ,the antiquity of these formations may be very great1 we can scarcely tell how far removed from our own era4 ,for1 while the zoophyte itself is of a perishable nature1 we are acquainted with no substance more durable 7if we except the gems7 than that calcareous matter of which these tubes and plates were formed1 when once it has been subjected to processes of infiltration by crystallizing mineral and metallic oxides4 ,now1 ,i think this argument a very strong one2 in fact1 although simple1 almost unanswerable4 ,for no plant dwells thus in a house4 ,we have the plant itself1 but nothing more2 and if this be not capable1 and ,i hold it to be incapable1 of sustaining the most vehement mineralizing process in the crucible of ,nature1 its history must be a brief one1 and excepting in the dark 8lithographs0 of the coal-measures1 its memory must pass away4 ,i have already allowed an exceptionable case in favour of the conifers1 which1 be it observed1 nowise resemble anything portrayed in siliceous pebbles1 and it is remarkable how much this class of plants predominates in the ,,coal4 ,i have always been suspicious of what are called 8vegetable petrifactions40 ,i examined those at ,tivoli1 near ,rome1 in the year #ahde1 and ,i made up my mind that they are simple incrustations4 ,in like manner1 many of the buildings at ,pstum are constructed with a kind of 8travertine0 taken from the bed of a neighbouring river1 and which rapidly incrusts any solid objects submitted to the action of its waters4 ,but the truth is1 the vegetable pipe or 8straw0 remains for a while1 owing to the silex which entered into its composition while the plant was growing4 ,after some years the straw decays1 and there is a hole or depression in that part of the pillar or pediment4 ,on the other hand1 a calcareous 8menstruum10 imbibing silex and iron1 hardens into a substance which1 like the best mortar or cement used in building1 will sometimes outlast even the blocks of limestone or oolite which it was put to bind together4 ,thirdly4 ,animal organization1 such even as these polyps possessed1 renders the phenomena much more intelligible4 ,our best authorities in such matters tell us that 8insects have neither lungs nor branchi2 but in them the air passes into a system of tubes1 whose structure resembles that of an elastic webbing40 ,and again1 8,the annelids possess an uninterrupted circulation40 ,and again1 8,in the #8,nymphon' and #8,pycnogonum' molluscs1 which are crustaceans having considerable resemblance to certain of our field spiders1 the intestine penetrates to the very extremities of the feet and claws40--,animal ,kingdom4 ,now here are cited some of the very desiderata which ,i should have named1 had ,i been asked what conditions were needed priori for such petrifactions to occur4 ,i will only add1 under this head1 that a fine annelid occurs in the blue agate off ,eastbourne2 that a 8myriapod10 which is among the chromo plates of this volume1 has all the characteristics of insect life and motion2 and that a spider is the nearest thing ,i know of1 in some respects1 to what the 8choanite0 must have been when that mollusc condensed himself from a cylinder to a sphere4 ,perhaps1 however1 the strongest clause in this part of the argument may be drawn from the 8sponges40 ,here the creature itself1 wonderful to relate1 is a viscous fluid1 and the intricate mansion which he inhabits is a globose1 horny skeleton1 perforated with endless small tubes opening into wider galleries4 ,there was1 however1 in the perfect animal1 ,i am assured1 one main central cavity1 which gave strength and unity to the entire fabric by the plan of its walls1 and1 perhaps1 by a main valve4 ,throughout the whole of this hydraulic system the sea-water1 on the circulation of which the zoophyte depended for life and health1 could be pumped to and fro at pleasure4 ,and1 evidently1 when the 8habitat0 of such a creature was suddenly invaded by a siliceous crystalline solution1 extinction of the animal and a petrifying investment of his abode would be simultaneous4 ,lastly4 ,if the objects here petrified had been vegetable in their extraction1 should we not1 with the aid of the microscope1 be able to identify them8 ,but this ,i have never yet succeeded in doing2 yet all the petrified 8woods0 are well known4 ,i have myself obtained slabs of the 8acacia0 from the coast of ,south ,devon2 of the 8beech10 in ,sussex2 of coniferous wood almost everywhere4 ,and1 what is more to the purpose1 though the petrifaction in such cases is deep and perfect1 no one looking upon it could doubt for a moment that the original structure had been that of wood from a forest-tree4 ,agatized as it is1 and penetrated here and there by metallic colours1 and shot with rays of jasper1 the lines in its fabric reveal the texture of wood4 ,i may mention here1 that every one who walks our beaches1 with a view to the collection of fossil specimens1 will do well to carry in his or her pocket a good lens1 of large external diameter2 mine measures about two inches across1 and ,i may truly say it has saved me a world of trouble1 besides affording me much satisfaction at odd moments in the scrutiny of pebbles of different kinds and textures4 ,before closing this chapter ,i may be permitted to draw the reader's attention to a theory held by the late ,dr4 ,mantell4 ,i cannot1 at this moment1 lay my hand upon the volume in which it occurs1 but ,i am pretty sure it will be found in his 8,geology of the ,isle of ,wight30 a book which1 for elegance of composition1 and sound information1 can hardly be too much commended2 though a resident lapidary in ,sandown did once say to me1 while thumbing the pages of a well-worn copy1 8,ah1 sir6 if the ,doctor had come here and stayed a week instead of listening only to what those fellows told him in ,ryde1 ,i could have shown him something which he doesn't seem to know1 as to how the bit of coast runs hereabouts40 ,dr4 ,mantell's idea was this3 he held that when a mollusc was subjected to the first stage in the petrifying process1 there was1 in the dying of the creature1 some effusion of blood 7or quasi-blood71 and that this1 being the very pith and strength of the animal's system1 would1 in many cases1 tinge the future stone indelibly4 ,he carried this notion so far as to assign some dark blotches1 apparent in the masonry of a wall1 to such a source as being their most probable cause2 and he gave to the thing itself the graphic title of ,molluskite4 ,in this view ,i will only add that ,i am inclined to agree with him2 and in my 8myriapod10 already referred to1 there is a blood-red spot which pierces through the stone1 appearing on both sides1 and which ,i at first supposed to be a piece of 8shell-lac10 but ,i now rather regard it as the trace left of himself by some marauding 8pholas10 who1 after drilling a hole through the solid pebble1 found his own grave there4 ,,chapter ,,vi4 ,,on ,,the ,,litoral ,,labours ,,of ,,the ,,ocean1 ,,and ,,on ,,seaside ,,sports4 ,the more ,i consider the various phenomena occurring from time to time on the dry land1 and the more opportunity ,i have of observing for myself simple facts in geology1 the more ,i am struck at once with the truthfulness and the unexpectedness--if ,i may use such a word--of the assertion which ,moses makes in the #ast chapter of ,genesis1 that the appearance of the 8dry land0 was due to 8the gathering together of the waters unto one place40 ,the assertion has an unexpected 7 priori7 character2 for continents and tracts of dry land do not1 on the face of them1 suggest the idea of any recent presence of incumbent masses of salt water--perhaps miles in depth4 ,but it is eminently truthful1 for it is a key to many an abstruse problem in ,nature1 and a confirmation of every sound and enlarged view of the past history of this globe4 ,the ocean has been busily at work--in old times1 inland2 in later times1 coastwise2 in all times subterraneously4 ,this last point is proved by the volcanoes1 and that in a twofold argument4 ,such volcanoes as are now extinct1 are so because they have lost all communication with the sea2 such of them as are active1 are so because they draw supplies of salt-water from the nearest part of the ocean1 and this they can only do subterraneously4 ,but in speaking of the labours of the ocean1 ,i shall confine myself to the seashore1 as the scope of this little volume does not go beyond that region4 ,the point where sea and land meet is the critical point for all observers of ,nature4 ,here the disciple of geology should serve his apprenticeship1 and if he cannot accumulate facts1 and glean a kind of inspiration here1 he cannot do so anywhere4 ,moreover here1 better1 we think1 than in any inland scenery1 ,man can muse and meditate4 ,that ever-varying curved line of moisture on the shore depicts the fluctuating changes which momentarily visit his 8little day20 the tide running in is the flood of his early life2 the tide running out is the ebb of his declining years2 the vast sweep of the coast1 backed by the upland ranges and everlasting hills1 and itself only lost to sight in the far horizon1 tells of a steadfast future1 an immutable eternity4 ,above all1 those who desire to note epochs in the flight of ,time1 and to set up way-marks in the ,earth's chronology1 must study the line of the sea-coast1 the ancient and the modern1 for here1 if anywhere1 the dial-plate is uncovered1 and the shadow of the gnomon may be traced through some seconds of the enormous day which has witnessed the existence of the heavens and the earth4 ,i have already1 in my opening chapter1 remarked how the sea brings down1 in the course of ages1 many a pebbly beach from cliff and causeway4 ,but ,i am far from assuming1 therefore1 that all the pebbles of a beach come from the land4 ,the usual bottom of the sea is1 indeed1 no pebbly shore2 but there are many submerged rocks of sandstone and oolite1 out of whose ribs and crevices1 from time to time1 fossils may be washed1 just as our own chalk-cliffs1 the main resort of the siliceous pebbles1 were themselves laid down in deep seas4 ,and the salt water1 which is always acting gradually to dissolve certain rocks1 when it removes portions of these from the edges and promontories1 will occasionally bring their contents to shore4 ,but these results1 although interesting to those who maybe searching after pebbles 7and a deep-sea pebble is a prize71 were not what ,i pointed at when ,i spoke of the labours of the ocean4 ,i have frequently walked the shore1 and observed the colour of the waves1 after what is termed a 8ground swell10 which had lasted1 perhaps1 for thirty or forty hours4 ,the cerulean hue is then gone1 and to it has succeeded1 in certain localities1 an opaque chalky tinge1 showing that the water is now heavily charged with lime4 ,also fragments of shells rolled together are united with heavy masses of sand1 and sometimes of broken pumice-stone1 and a kind of rough marl is rapidly formed1 and left on the beach4 ,after a gale1 and succeeding 8swell10 ,i have met with these imperfect boulders1 varying in size from that of a man's fist to some larger than his head4 ,at the same time1 any low ranges of littoral rocks become crusted over with the superabundant lime1 being more than the waves will long hold in solution2 and a coating is thus given to such rocks which is sometimes as hard as is the native limestone itself1 a few weeks' exposure to the sun and air sufficing to effect this4 ,some fourteen years ago1 ,i had an opportunity1 when in ,sicily1 of examining a portion of the coast between ,messina and ,catania1 and ,i regret that ,i did not avail myself of it more heartily4 ,but ,i have seen ,m4 ,quatrefage's book on this subject1 and his observations1 most carefully and laboriously conducted1 may almost be said to close that part of the subject1 as far as any prospect of eliciting fresh information is concerned4 ,i think he measured some of the long reefs1 and the evident increase by incrustation extended for many miles of the coast-line1 and was of considerable thickness4 ,i have observed the same 8masonic0 phenomenon off the coast of ,st4 ,andrews1 in ,fifeshire1 when swimming out among the weedy rocks1 and afterwards climbing to the shore4 ,i then thought it was the work of marine insects1 as ,i had heard of molluscs building causeways of tubes of limestone1 but ,i incline now to think it was the sea doing it1 as they say1 at first-hand4 ,the sea1 however1 does a great deal in the same line at second-hand1 by means1 chiefly1 of two species of zoanthoid polyps4 ,of these little creatures1 one kind constructs the bases of coral islands1 and another the summits 7at the least7 of the madrepore reefs4 ,it is impossible to doubt that by labours so patiently carried on1 and so widely diffused1 some beneficent purpose is aimed at and attained by ,providence4 ,perhaps they operate1 finally1 to warn the shipping of adventurous merchants from entering certain dangerous bays and straits2 and if the humble madrepore has got a bad name through this1 as though he had made the danger1 he certainly suffers unjustly1 for what real difference1 as to ultimate and assured safety1 can a few inches more of water in such places make8 ,far better to raise an impassable bar across the way at once1 and proclaim1 8no thoroughfare60 ,then the ocean supplies a great market1 much the greatest in the world4 ,i do not know the proportion of persons in ,central ,europe who live on fish to those who live on meat1 but ,i think1 in both ,northern and ,southern ,europe1 the former exceed the latter4 ,in ,connemara1 on the western coast of ,ireland1 and in the ,scotch highlands of ,argyle and ,inverness1 fish is decidedly the staple article of diet1 as far as animal food is concerned4 ,i believe the same is true of ,cornwall and part of ,devon4 ,the herring1 the pilchard1 the haddock1 the cod1 and the salmon--to say nothing of the sole and other flat-fish--feed millions of persons1 and1 with the help of oatmeal1 barley-cakes1 and 7in a good year7 potatoes1 feed them well4 ,shell-fish are also no mean item1 and are sometimes the most refreshing of all dishes1 especially at the supper-table4 ,now the sea1 it must be remembered1 does all this for man without harrowing1 ploughing1 or sowing4 ,the fisherman's net may be said to reap1 that is all4 ,again1 if jewels be of any real value1 what is the value 7among such7 of a collar of faultless pearls8 what is there among minerals1 so pure1 so exquisitely beautiful1 whether we regard their tint or their form8 ,these are the spontaneous production of a humble shell-fish2 some say1 an offering from the creature when he has been wounded4 ,if so1 men may here learn a lesson in kind1 and return good for evil to those who persecute them4 ,again1 the ocean is our defence3 long may it prove so6 8,britannia needs no bulwark1 ,no towers along the steep1 ,her march is o'er the mountain wave1 ,her home is on the deep40 ,no doubt1 since man is a creature who lives upon the dry land1 the land is on the whole the most valuable2 but what would the land be without the sea8 ,nay1 to go no further1 how could we exist in summer and autumn1 if deprived of the sea-breezes8 ,for myself1 though naturally fond of field-sports1 and delighting in botanical and entomological pursuits1 ,i know of no treat equal to that of a seaside ramble in the month1 say1 of ,september or ,october4 ,now let us consider how very little mischief the ocean does us4 ,much fewer people die of what are called 8casualties0 by sea1 than of those by land4 ,the truth is1 we always hear of such as are lost at sea1 because of the loss of the ship1 which involves a question of insurance-money2 but of deaths inland1 especially in far countries1 and if belonging to strange peoples or savage tribes1 we perchance scarce hear at all4 ,,yeh1 the ,chinese ,commissioner1 killed1 it was said1 #gj1jjj persons in the course of his brief career1 for political reasons4 ,how long would it take for #gj1jjj persons to perish by storms or accidents at sea1 in the usual course of things1 in one small part of the globe8 ,a wreck1 it must be allowed1 is a terrible thing2 but so is a house on fire1 or a flood up the country4 ,the sea1 moreover1 labours to help the land in other ways1 some of them singular enough4 ,many thousands of poor unproductive acres have1 in these last ten years1 been rendered rich and fertile by supplies of ,,guano4 ,and whence did we get the guano8 why1 from the sea-fowl1 and from a barren rock in the bosom of the seas6 ,this is no trifling benefit to reap from the 8desert sea40 ,what a beautiful thing is glass1 and how indispensable it has become to us6 ,perhaps no other material can be insured to be perfectly clean and pure for drinking out of4 ,for many years our glass-works depended mainly upon a constant supply of kelp from the ,orkneys1 and even now they cannot dispense with the sea-sand4 ,the porcelain mills in ,staffordshire and elsewhere are very glad to obtain a cartload of pebbles from the beach4 ,these go to the 8crushing0 department2 and if among them there are1 as there are pretty sure to be1 a dozen lumps of chalcedony1 the material of the next batch of teacups will be unusually fine1 provided some one who understands them picks the stones first4 ,indeed1 if ,i had no preferable occupation in this world1 ,i have often thought ,i would collect the rough agates and chalcedonies from sundry localities ,i wot of1 and fabricate a biscuit of my own1 as the king of ,saxony does at ,meissen4 ,but though ,i have not the leisure for this1 others may have2 and so ,i mention it here4 ,especially ,i incline to think that a splendid kind of 8,wedgewood0 ware would result from the crushing of certain jaspers1 for ,i suppose their colours would not fade in the furnace4 ,then1 the seaside visit1 ,i must not omit to mention1 can be enlivened by sundry local pursuits and amusements4 ,besides the pleasures of a sailing-boat1 and a run with the 8dredge0 and the 8dipping-net10 there is the exciting march of the ,shrimper1 knee-deep in the wave1 pushing the hoop-net before him1 and every now and then halting to fill his front pocket with the silvery jumpers4 ,if there are rocks near at hand1 there will be lobster-pots to visit2 and the habits and deportment of a live lobster are among the most curious in creation4 ,in agility and cunning he surpasses even a salmon4 ,also1 for the benefit of those who at all regard what they eat--and he who disregards it is a goose--,i may just venture to hint that a real lobster-salad 7,london confectioners have a way of selling sham ones17 is a dish worthy their serious attention3 ,barclay's stout being not a bad accompaniment4 ,but the above will sound to some persons too 8,epicurean40 ,o gentle reader1 do you love moonlight8 and if you have ever admired the reflection of that planet in a lake or river1 what will you say to it when you contemplate it in ,sandown ,bay8 ,culver on one side1 looking as if it were of green glass1 and the cliffs of ,shanklin on the other resembling walls and pillars of porphyry6 ,or is your taste for the sterner beauty of storms and angry seas8 ,then visit ,blackgang ,chine late in winter1 and you may 8sup full of horrors40 ,the appearance of the waves below1 as they come in over that fatal 8race10 and the aspect of the earth and the heavens above1 when the lightning darts from 8,st4 ,catherine's head0 and sweeps like a destroying ,angel down the chasm of the ,chine1 yield together perhaps the grandest picture of desolation and terror that ,english scenery ever shows4 ,there are persons still living who are unwilling to speak of the fearful tempest they witnessed on that coast when the ,clarendon was lost4 ,lastly1 to return to our 8pebbles10 the sea is an indefatigable agent in the partly mechanical1 partly chemical1 work of infiltration2 a process to which both the fine texture and varied colours of these agatized fossils are mainly due4 ,but of this ,i must treat in the chapter which follows4 ,enough1 for the present1 of the ocean itself--of its labours and its sports4 ,but1 as some readers love a comparison1 and hold that every theme grows dull without this1 ,i will quote from the lips of a great traveller1 whom it was once my luck to meet1 his opinion of the rival claims of the ,desert1 to that admiration which we islanders lavish on the heaving ,ocean and the winding ,shore4 ,i cannot pretend to remember his very words2 but he was eloquent as the son of ,laertes1 and he made me long to visit the ,east4 ,he said that the ,desert was 8another world10 more marvellous than this of our land and sea3 it was a home and a domain1 like the former2 yet was it waste and boundless as the latter4 ,i asked about the sands4 8,vast1 beyond computation40 8,and the material80 8,powdered quartz1 all of it4 ,quartz mountains1 crushed1 and pulverized1 and sifted60 ,the reddish hue is from the peroxide of iron4 ,no particle of anything like organized matter has ever been detected in its composition4 ,the caravan-camels which drop and die daily on their hot march1 as they have done for centuries1 leave their skeletons1 after the vulture's inquest is over1 to bleach upon the surface2 and1 in the course of a season or two1 these bones must turn to an impalpable powder3 but that does not mix with the sand1 or phosphate of lime would at once be found on analyzing it4 ,then he spoke of the sunrise1 and the glowing sunset2 and of the delicious hours of night2 and of tent-life in the ,desert2 and of wandering ,arabs1 who revere the grave and silent man2 and of the charms of an encampment in some green 8oasis20 and then1 strongest commendation of all1 he said1 8,i am going back1 among the children of the ,desert60 ,,chapter ,,vii4 ,,concerning ,,certain ,,natural ,,phenomena4--,,origin ,,of ,,the ,,diamond4--,,formation ,,and ,,colouring ,,of ,,gems4--,,infiltration ,,of ,,pebbles4--,,cause ,,of ,,transparency4--,,integrity ,,of ,,the ,,fossil-,,nodules4--,,theory ,,of ,,the ,,shattered ,,flints4--,,concluding ,,observations4 ,the charm which wins and rivets our attention in such pursuits as those of ,geology or ,mineralogy1 is not that the phenomena which we meet with are capable of being classified1 and of forming a scientific system4 ,all this is1 no doubt1 one day instructive and interesting2 but it was an afterthought1 the result of experiment4 ,the first charm lay in that silent mystery which broods over every part of creation1 a veil as yet unpenetrated by ,science3 it lay in our instinctive consciousness that ,nature1 in what are1 perhaps1 her simplest movements1 still transcends all the master-pieces of ,art4 ,take1 for instance1 the crystalline gems4 ,these are the most remarkable substances with which we are acquainted2 they are also among the most simple4 ,chemically speaking1 the metals and gases may claim to be regarded as simpler bodies2 but then it must be remembered that we do not meet with them in nature thus unmixed4 ,gases vary1 both in volume and character1 every instant2 and ordinary metallic ores are penetrated and disguised by foreign matter2 whereas faultless crystals1 once perfected1 appear to be unalterable4 ,some of these1 as the ,,diamond1 would almost seem to be an elementary substance2 and yet this can hardly be the actual case4 ,the philosophical account of a crystal1 as 8some substance1 all the particles of which1 being free to move1 have been operated upon in the way of a chemical1 perhaps an electrical change10 certainly makes against it2 for1 according to this definition1 such 8substance0 is a first desideratum1 without which we cannot have the 8crystal40 ,thus1 oxygen and hydrogen1 blended together in certain definite proportions1 yield the fluid substance1 ,,water2 and the 8crystal0 of water is ,,ice4 ,in like manner1 common white carbonate of lime1 and the fluor spars1 whose ingredients we know1 are in daily process of formation4 ,the philosophical idea1 so accurately expressed in the above definition1 is1 doubtless1 correct1 if once we assume a past history for some substance1 and take the crystal before us as its result4 ,but1 whether all bodies which we now meet with under the form of crystals have1 in point of fact1 had such a history1 is quite another question4 ,the diamond is universally held to be pure ,,carbon crystallized4 ,its high refraction indicated this to ,newton long ago2 and the proof has since been given twofold3 for the diamond scales off and evaporates under intense heat1 and its dust has carbonized iron-filings1 turning them into steel4 ,further1 this carbon is supposed to be of vegetable origin2 and1 if so1 it would seem to follow that there must have been plants1 and perhaps coal-strata1 before there could be any diamonds4 ,but what was the process actually carried out in nature8 ,no one has hitherto succeeded in obtaining this gem1 answering to the conditions of a 8brilliant0 in water1 lustre1 and weight1 by any attempted method1 from the base of carbon4 ,the ,french chemists have now1 for some years past1 been experimenting upon boron1 by means of the voltaic battery2 and they have1 it seems1 taken out of the crucible sundry small1 pale crystals1 which are found to be nearly as hard as adamantine spar 7a variety of corundum72 but they cannot show1 as the fruit of their labours1 a diamond weighing one carat1 and worth1 according to the tariff1 eight pounds sterling in the market of ,europe4 ,indeed1 if this boron be a mineral intermediate between carbon and silex1 their gems will assuredly partake of the character of rock-crystal1 a stone which has no affinity with the diamond whatever4 ,the process of ,nature1 therefore1 being unknown1 if indeed it ever took place1 the question fairly arises--whether diamond be a derived crystal1 or itself an original type of created matter4 ,or it might be put thus3 8,if diamond be the purest form of carbon known1 what is carbon then but diamond debased80 ,neither does this exhaust the argument4 ,the ruby owns a matrix3 the pearl grows in the mother-of-pearl4 ,what is the nature of the diamond-rock8 ,is it a dark conglomerate8 or is it diaphanous8 ,we know how diamonds are obtained3 how they are picked out of the crevices of certain rocks1 and washed out of the sands of certain rivers--in the ,carnatic1 and ,brazil1 and ,borneo2 but we do not seem to be much nearer to the history of their parentage4 ,again1 what is their 8crust0 or coating with which they are always found enveloped8 ,is it an integral part of the stone1 or is it adventitious8 ,in the best diamonds this crust is of a greenish hue4 ,some say that while the gem itself has positive electricity1 its crust shows negative4 ,if this be so1 the last question is answered--the crust in that case cannot be an integral part of the stone4 ,the only absolute reason ,i know of for concluding the diamond to be a derived substance is1 that it is laminar4 ,the ,eastern lapidaries1 as it is well known1 will sometimes divide a stone by striking it a sharp blow in the cleavage4 ,after all1 the most extraordinary property of the diamond1 as pure carbon1 is its weight4 ,it is fifty times the weight of refined charcoal4 ,how was the element of carbon condensed and inspissated thus8 ,was it by the action of ,,light8 ,this is the vegetable analogy2 as we see in the case of all growing plants3 did it hold here8 99 99 99 99 99 ,if we were to inquire how oriental sapphires1 including the ruby1 the blue sapphire1 the emerald1 and the amethyst1 are formed from ,,clay1 that clay which exists in the granite rocks1 the difficulty would be nearly as great4 ,we do not know at all4 ,but there is some satisfaction in having undoubted proof of the nature of their 8base40 ,and the obvious evidence upon this point is very simple1 and prior to that of chemical analysis4 ,my own attention was first drawn to it many years ago1 in a casual remark made by a friend4 ,we were handling some crystals of the white sapphire1 a stone of little value4 8,these look very like glass10 said ,i4 8,yes1 but you may always tell them from glass by their coldness4 ,touch one with your tongue40 ,then followed the inquiry4 8,and why is it so much colder than glass is80 8,because the #8base' of the sapphire is ,,clay1 and clay is a very cold substance40 99 99 99 99 99 ,let us now pass on to consider the question of ,,colour4 ,in the existing varieties of gems1 we have all the colours of the spectrum perpetuated and vivid4 ,what is the source of these colours8 ,and how are they blended with the solid crystal8 ,there seems to be no reason for doubting that the immediate source or cause of colour is the presence of some oxidized metal4 ,all the colours which ,nature has impressed appear1 as far as we can trace them1 to be due to such a presence4 ,opaline tints1 and those of the 8cat's eye10 are an exception2 being the perceptible result of a peculiar texture and configuration2 so also are the iridescent hues on a soap-bubble1 which are probably caused by polarized light4 ,but it is a metal which makes the bark of certain trees and shrubs to glisten2 aided1 in the case of the birch and wheat-stubble1 by particles of silex4 ,it is a metal1 absorbed from juices of the soil1 which gives their tints to flowers1 and their deep tinge to fruits4 ,it is a metal which dyes the plumes of the king-fisher2 and the gleaming scales of the dragon-fly and diamond-beetle owe their brilliancy to metallic lustre4 ,why should this all-pervading law vary in the crystals8 ,we know that metals proper affect crystalline forms1 assuming them spontaneously2 and we know that the gems have come in contact with metals4 ,iron1 whose rust is of a reddish hue1 enters into many of them2 and in the red stones it is said to be abundant4 ,probably1 the finer permanent tints are due to gold1 in infinitesimal proportions4 ,professor ,faraday has said that the ruby-tinted glass called 8,bohemian0 derives its colour from gold in a pure form1 finely attenuated1 and not from any chemical combination of that substance4 ,a white diamond has far more lustre than one which is yellow or violet-tinted4 ,but in all the sapphires1 the deeper the hue1 the more brilliant and valuable the stone4 ,hence the technical term for the colour of a diamond is its water4 ,in all these gems the hues 7whatever their origin7 are homogeneously united with the crystal2 and the modus operandi of ,nature is a profound secret4 99 99 99 99 99 ,when we descend in the mineralogical scale1 and come to such stones as agates and jaspers1 the process which has been followed seems quite capable of being traced--for its antiquity is not so great4 ,the colours which we now find in pebbles more or less opaque1 though occasionally lively1 exist under very different conditions from those by which they reside in the crystalline gems4 ,it is necessary1 however1 to consider first1 the origin and nature of pebbles as distinguished from casual fragments of stone4 ,this was long held to be one of ,nature's riddles2 but as soon as it was experimentally dealt with1 it met with a solution in some of its most difficult points4 ,it was early decided that pebbles are distinct formations1 complete in themselves1 except in so far as they have been worn away by gradual attrition4 ,the first difficulty was1 how to account for the great hardness of many of our seaside specimens4 ,although for the most part inclosing an 8organism10 which must have been that of some zoophyte1 they show no traces1 in their present compact texture1 of the soft and yielding consistency they must at that time have possessed4 ,the matrix in which they lie1 and from which they drop as the ripe nuts fall from a hazel-bush1 is seldom or never of so hard a substance as are the pebbles themselves2 in many cases the difference is as great as between the teeth and gums of a living mammal4 ,but the evidence of the inclosed organism is conclusive as to a past history2 and in all mixed pebbles--and ninety-nine out of a hundred of ours are mixed--it is quite certain that an impregnation1 or an actual infiltration1 has taken place4 ,either a fluid menstruum1 usually siliceous1 must have enveloped and saturated the animal form1 or there was actual injection of chalcedony and limestone1 in a soft state1 into the tubes and cells of the skeleton first1 and afterwards into the pores and crevices of the new stone4 ,frequently both processes have obtained4 ,the only alternative1 viz4 that which suggests that composite pebbles1 revealing in their structure distinct traces of animal or vegetable organization1 may have been formed thus at first1 like the coloured prints in a book1 ,i consider to be untenable4 ,one might as readily credit a spontaneous growth of almond-cakes or oyster-patties by some sudden spasmodic effort of our present sea and land4 ,impregnation has1 no doubt1 been always going on4 ,a ,french savant1 ,m4 ,reaumur1 above a century ago1 wrote as follows3--8,by a coarse operation emery is reduced to powder and suspended in water for several days2 but nature may go much further than this1 for the particles which water detaches from hard stones1 by simple attrition1 are of an almost inconceivable degree of fineness4 ,water thus impregnated contributes to the formation of pebbles by petrifying the stone1 as it were1 a second time4 ,stones already formed1 but having as yet a spongy texture1 acquire a flinty hardness by impregnation with this crystalline fluid40#c ,from such a source1 as he supposes1 has arisen the close texture of ,egyptian pebbles1 coloured jaspers1 and even agates4 ,if he means to include the homogeneous agates1 which are alike free from sparry crystals1 metallic scum1 and all traces of organized matter1 ,i do not agree with him4 ,but in the case of mixed chalcedonic pebbles1 among which may be classed our pretty ,isle of ,wight specimens1 no doubt such impregnation took place1 and was followed by a further process of infiltration4 ,for when the flint-nodules1 impregnated as above1 were still soft--soft enough we know they were to take delicate impressions of the spines of the echinus--chalcedony1 in a semi-fluid or viscous state1 would pass through the pores of the flint1 because the former is the finer substance of the two4 ,and after such infiltration1 the entire lump would harden1 resisting1 for the most part1 further change4 ,and this would be the pebble as we now find it4 ,in the 8,geological ,museum10 now open in ,jermyn ,street1 there is a case 7on the first floor7 where the nature of infiltration is well shown in some jasper-agates4 ,it will readily be seen here that each internal layer has been formed in succession from without1 the centre of the pebble filling up last4 ,in another case 7labelled 8,silica071 on the opposite side of this room1 are some 8choanites0 and 8sponges0 presented by the author4 ,those latter will be found worthy of ten minutes' inspection1 even as seen through the plate of glass which serves to protect them4 ,they are selected1 not as being the finest specimens in his cabinet1 but as illustrating1 each of them1 a particular animal1 or a peculiar position of one in the fossil state4 ,they are1 however1 very good specimens1 much above the average2 and if any one became missing1 it could never be exactly replaced1 though you should search the world over4 ,nature does not stamp the same 8medal0 twice4 ,any person who1 after examining these1 likes to start a theory of his own to account for their forms and colours1 has my full permission to do so4 ,but one word ,i would say in friendly warning1 seeing that theories do abound4 ,the ,chinese1 that ancient and wise people1 have a theory that 8asbestos0 cloth may have been manufactured 8of the hair of certain rats that lived in the flames of certain volcanoes40 ,it were monstrous to doubt it4 ,in my beach-rambles ,i have often picked up and examined globes of sandstone which were partially chalcedonized1 and that by evident infiltration4 ,the lapidaries call these 8sand-agates10 and reject them as unfit for the wheel2 and so they are at present1 but it would be instructive to meet with some of them twenty years hence1 after they had undergone a more confirmed treatment at the hands of ,dame ,nature4 ,the well-known specimens of 8petrified wood10 common on our coasts1 and occurring in some beautiful varieties of beech and acacia in the bays of ,south ,devon1 are a further example of infiltration2 but the process here must have been somewhat different4 ,the presence of metallic particles1 what lapidaries term the 8moss10 in many of our agates1 argues an impregnating fluid1 thoroughly charged with mineral matter4 ,in most cases this fluid was a ferruginous stream1 such as may often be seen issuing from some hidden reservoir1 and trickling down the face of a cliff of gault or greensand4 ,this tinges everything that lies in its path with an indelible red stain2 it then oozes on through the shingle1 and reaches the verge of the sand4 ,the nearest pool becomes saturated between tides1 and the suspended crystals of salt1 which are of a penetrating character 7as the state of your beaching-boots will soon inform you71 enter into chemical combination with the metallic rust1 and help to conduct its particles into the heart of many a limestone pebble4 ,dark inland pebbles1 on the other hand1 will discharge much of the oxide which they have imbibed1 and may be observed to brighten and improve their complexions after a few months' sponging and tossing in the purer sea-water4 ,some of our handsomer pebbles1 when cut in two1 reveal blotches of metal1 which are glossy after polishing on the wheel4 ,this metal is occasionally native iron4 ,the darker varieties of 8moss0 contain a good deal of manganese1 and some silver4 ,from what has been said about impregnation1 we may readily conclude that the colours found in our agate-pebbles have been chemically inwrought1 and that the symmetrical patterns1 over which these colours are disposed1 are not due to a succession of 8layers10 as in the ribbon-jaspers and ,scotch pebbles1 but must be referred to the organization of some extinct zoophyte1 whose skeleton is preserved in the existing fossil4 ,the cause of translucency1 or even transparency1 in some pebbles is1 no doubt1 to be sought in their finer and more even texture1 but especially in the latter quality4 ,sir ,isaac ,newton was of opinion that the opacity of certain substances is simply a result of their cross-grained composition4 ,he held that in a transparent body the particles must be regularly and evenly disposed at equal intervals1 so that a ray of light entering such a substance would pass steadily on1 according to the known laws of gravity and motion1 meeting with no obstruction beyond that of the homogeneous density of the medium which it had to traverse4 ,whereas1 in opaque bodies1 he supposes these constituent particles to be unevenly disposed1 and that the ray which enters at the surface is1 as it were1 pushed about and thrust aside1 and at length lost to sight4 ,the purity of spring-water1 when undisturbed1 illustrates this beautiful theory of the great philosopher2 and1 among solid substances1 good glass1 especially plate-glass which1 after fusing in the furnace1 has been carefully run and settled in the frames4 ,it may also be simply shown in the act of wetting or steeping certain dry substances4 ,thus1 stout writing-paper1 owing to its cross texture1 is opaque when dry2 but if we immerse a sheet of it in oil1 and then hold it up to the light1 we find it has become transparent4 ,for the smooth medium thus imbibed has entered its pores1 and equalized the general texture4 ,we find also a striking argument for the probable truth of ,newton's eagle-eyed conclusion in certain minerals which possess double refraction4 ,,iceland ,,spar1 one of these1 is perhaps the most perfectly transparent solid with which we are acquainted4 ,now1 ,iceland ,spar transmits both the rays1 as we see in the twofold image which is presented to us4 ,but ,,tourmaline is opaque1 even the red specimens looking almost black2 and we find that ,tourmaline absorbs one of the two rays of polarized light4 ,this singular stone polarizes a beam of light if it enter in any direction but that of the longer axis4 ,no solid with which we are acquainted is absolutely transparent4 ,and there is no perfect reflector known4 ,the best-polished surface absorbs nearly one-half of that quantity of light which strikes upon it4 ,as to our seaside pebbles1 the most compact of them are even visibly porous4 ,cut through the hardest jasper1 and polish one face till it shines like a steel mirror1 and then hold it so as to reflect the light1 you will at once discern numerous minute specks or flaws on this surface1 as if the point of a needle or graving-tool had been busily at work upon it4 ,these specks have always been there4 ,they are air-holes1 and in the case of a fossil-pebble were1 some of them1 doubtless1 connected with the position which the animal occupied just before he died4 ,these air-holes must have traversed this hard stone in every direction1 for1 cut the pebble how you will1 you meet with them4 ,others again1 incomparably more numerous1 but which can scarcely be discerned without the aid of a powerful microscope1 are the true pores belonging to this apparently impenetrable substance4 ,i have found that the action of daylight tells even upon polished agates after a time4 ,some of the spots and markings in the finest stones grow fainter in the course of many years4 ,others appear to deepen4 ,this is1 no doubt1 a change resulting from the oxygen1 contained in a beam of light1 acting readily upon carbon1 silex1 and other substances4 ,and it furnishes an independent argument for concluding that the visible beauty of these formations1 in perpetuating a coloured pattern1 has been due rather to mixed chemical processes than to pure crystallography4 ,the fossil nodules1 mostly siliceous1 which we find upon a sea-beach1 are integral specimens4 ,it never but once happened to me to meet with what appeared to be two choanites in the same pebble1 and ,i incline now to believe that this was in fact one choanite who had divided himself after the manner of the ,luidia4 ,but even supposing that here were1 indeed1 a pair of perfect animals1 when it is considered that this was one single instance1 occurring among more than a thousand picked up by me1 in which the choanites were always solitary1 such an exception may be almost said to prove the rule4 ,the late lamented ,hugh ,miller has stated the like fact concerning his ,morayshire and ,cromarty icthyolites4 ,at pp4 #aid1 #aie1 of his 8,cruise of the ,betsy10 he remarks that 8the limestone nodules take very generally the form of the fish which they inclose2 they are stone coffins carefully moulded to express the outline of the corpses lying within40 ,then1 after observing that the shape of the stone conforms to the attitude of the fish in every instance1 he goes on to state that 8the size of the fish regulates that of the nodule4 ,the coffin is generally as good a fit in size as in form2 and the bulk of the nodule bears almost always a definite proportion to the amount of animal round which it had formed40 ,he then gives1 in his usual clear and graphic language1 the following remarkable statement1 the result of direct experiment4 8,when a calcareous earth1 mixed up with sand1 clay1 and other extraneous matters1 was deposited on some of the commoner molluscs of our shores1 it was universally found that the mass1 incoherent everywhere else1 had acquired a solidity wherever it had been penetrated by the animal matter of the molluscs4 ,each animal1 in proportion to its size1 was found to retain1 as in the fossiliferous spindles of the ,old ,red ,sandstone1 its coherent nodule around it4 ,here the animal matter gave solidity to the lime in contact with it4 ,but in the natural phenomenon of the icthyolite beds1 there was yet a further point1 for in these the animal matter must have possessed such an affinity for the mineral1 as to form1 in an argillaceous compound1 a centre of attraction powerful enough to draw together the lime diffused throughout the mass40 ,hugh ,miller concludes the above passage by saying that 8it still remains for the geologic chemist to discover on what principle masses of animal matter should form the attracting nuclei of limestone nodules40 ,upon which last remark1 ,i would suggest that the principle of the 8law of definite proportions10 established by ,dalton1 and fully borne out by all succeeding experiments in chemistry1 appears to meet the case1 geologically as well as chemically1 in every respect4 ,for such a law must of course obtain1 whether the chemical ingredients be present in the forms of mineral1 vegetable1 or animal life2 in fact1 we have never known the law to vary4 ,it holds for the compounded elements which we term ,,air and ,,water2 it holds for the crystals2 it holds for vascular and cellular tissues2 why should it fail when the further instance of a mollusc or a zoophyte is in question8 ,i see no reason to doubt that the blood1 muscle1 membrane1 or adipose matter of any animal have their due respective affinities for the different substances of the mineral creation4 ,no doubt1 however1 electricity1 as an active cause1 bears directly upon all such phenomena4 ,i remember many years since being greatly perplexed with the discovery 7as ,i then thought it7 that in certain parts of the ,isle of ,wight1 and along the ,dorsetshire coast1 the rows of dark flints imbedded in the upper chalk of the cliff-ranges were all broken2 broken small1 so that if one were taken out of its chalk socket it crumbled in your hand4 ,often and often1 ,i turned this fact over in my mind1 and sought some apparent way to account for it4 ,but ,i think ,i now see one way to account for it2 and which may perhaps be judged worthy of acceptance1 until a better solution is hit upon4 ,in ,dr4 ,hook's experiment with that once common household implement1 the 8flint and steel10 he found that the sparks which 8fly0 upon collision taking place are minute spherules of metal4 ,and further1 that this metal was now not steel any longer1 but iron2 the fragments struck off having lost their polarity in the moment of contact with the flint4 ,this experiment shows that silex possesses some remarkable affinity for the magnetic fluid1 since in this case it had robbed the steel of it1 for those spherules would not answer to the magnet4 ,may not1 therefore1 the rows of flints in the cliff have attracted the lightning in severe thunderstorms1 and been shivered by the blow8 ,this would not necessarily hurl the chalk down4 99 99 99 99 99 ,the ,arabs have a proverb which says1 8,under the lamp it is dark40 ,certainly1 the chief mystery of every animated creature seems to reside in its life1 and ,life is like a burning lamp4 ,once the life extinct1 we can anatomize and analyze1 and arrive at many partial conclusions2 but1 meanwhile1 the life has departed1 and we do not know what that was4 ,the nearest thing to its likeness is expression2 and animals rank high in the scale of being1 according as they command and impart expression4 ,a dog or horse have a great deal2 a bird some2 a reptile or insect1 absolutely none to our eyes4 ,with these latter1 however1 their habits1 while alive1 take the place of any more intelligent expression2 especially some of their more excited movements4 ,we know by the sound1 when a snake is angry2 and as to motion1 the attack of a provoked hornet is a startling thing to witness4 ,ordinarily speaking1 however1 all their habits tend to concealment2 no doubt1 for the sake of safety4 ,i believe no one ever sees the ,sphynx-moth1 called a 8,death's-head0 7,acherontia ,atropos71 on the wing4 ,yet we discern many others which1 like it1 fly in the hours of dusk4 ,but this insect whirls through the air like a stone from a sling4 ,it has never yet1 in my experience as a naturalist1 been my lot to meet with the burrowing insect called an ,ant-lion4 ,only twice in my life have ,i encountered a slow-worm in the woods of ,devon and the ,isle of ,wight4 ,and to instance the case of a far commoner creature1 how seldom does it happen to any one to take the large dragon-fly behind his green leaf6 99 99 99 99 99 ,and yet the problems of inanimate matter are perhaps the most difficult to solve4 ,they have deeply exercised philosophers in every age of the world4 8,all things considered10 says ,newton1 8,i think it probable that ,god1 in the beginning1 formed matter in solid1 hard1 impenetrable1 movable particles2 of such sizes and figures1 and with such other properties as most conduced to the end for which ,he formed them4 ,and that these primitive particles1 being solids1 are incomparably harder than any of the sensible porous bodies compounded of them2 even so hard as never to wear1 or break in pieces2 no other power being able to divide what ,god made one in the first ,creation4 ,while these corpuscles remain entire1 they may compose bodies of one and the same matter and texture in all ages2 but should they wear away or break in pieces1 the nature of things depending on them would be changed4 ,water and earth composed of old worn particles and fragments of particles1 would not be of the same nature and texture now with water and earth composed of entire particles at the beginning4 ,and therefore1 that ,nature may be lasting1 the changes of corporeal things are to be placed only in the various separations and new associations of these permanent corpuscles40 ,so wrote the man1 8,qui genus humanum ingenio superavit10 who at the age of twenty-four had already invented the ,fluxional ,calculus1 discovered the ,decomposition of ,light1 and enunciated and proved1 in a series of lemmas1 the law of ,universal ,gravitation4 99 99 99 99 99 ,but soft6 ,what is this which steals upon our senses through bobbing apple-blossoms at the open casement8 ,it is the delicious1 oystery smell of the ,sea1 as the afternoon tide runs in with a sound like that of fairy-bells upon the sand and rock and loose shingle4 ,that scent1 and sight1 and sound1 are altogether irresistible4 ,we throw aside ,dr4 ,buckland and ,hugh ,miller1 clap on a 8wide-awake10 rush down at once by the zig-zag path1 and madly catch up a bunch of dripping tangle1 and kick a hole in the moist sand1 and presently find that our 8,balmorals0 are ancle-deep in the brine of a nimble wave4 ,and now ,i descry a faint purplish hue upon the red beach which lies at the foot of ,culver4 ,to-morrow1 we will breakfast early1 and hunt up a score of pebbles before the day grows hot4 #c 8,mmoires de l',acadmie des ,sciences40 ,anno1 #agba4 ,,chapter ,,viii4 ,,pneumatics ,,and ,,hydraulics4--,,power ,,of ,,the ,,wind4--,,power ,,of ,,the ,,waves1 ,,and ,,velocity ,,acquired ,,by ,,the ,,water4--,,occasional ,,height ,,of ,,tides4--,,tidal ,,wave4--,,currents4--,,tidal ,,phenomena ,,on ,,the ,,isle ,,of ,,wight4--,,variations ,,in ,,the ,,coast-,,line4 ,the elemental powers which are constantly at work in ,nature all around us are upon a vast scale2 a scale1 in fact1 which is immeasurable by us1 except when observed under certain favourable circumstances4 ,as our practical ideas of locomotion are immensely surpassed by the speed of the ,earth's rotation on her axis1 which is at the equator rather more than #ajjj miles an hour1 and yet far more surpassed by the rate at which she moves in her orbit round the ,sun1 which exceeds #bj1jjj miles an hour1 so also our experience of a puff of wind on the hillside1 or a dash of water in our face1 when a slanting shower or the spray from a cataract salutes us1 gives us no conception of the stupendous powers which are exerted when the sea1 convulsed by a storm1 rages along some unprotected coast4 ,once in my life1 ,i remember being knocked down by a blast of wind2 and several times1 as ,i suppose has happened to many persons1 ,i have been floored by an unexpected billow while bathing4 ,i always made this reflection at the moment3 8,its power is not known3 it has floored me easily enough1 but perhaps it would have felled an ox40 ,but a wave impelled by the gale1 which could take an ox off his legs1 is nothing at all4 ,what is the measure of force actually applied when a stout ship is shivered on a lee shore8 ,no one knows4 ,when the ,clarendon1 ,west-,indiaman1 struck on that fatal 8race0 off ,blackgang ,chine1 she went utterly to pieces within seven minutes6 ,yet1 what a delicate thing is ,,air6 ,what a yielding thing is ,,water6 ,but then the air and water threw her on a lee shore4 ,observations1 carefully made at the right time and place1 enlighten our ignorance upon all these matters4 ,air1 delicate as it seems1 when compressed1 explodes in the roar of the thunder2 and water is almost incompressible1 and therefore its blow will knock down anything4 ,let us speak first of the power of the ,,wind4 ,the sands of the ,desert1 as has been said1 are powdered quartz and quartz is a heavy substance2 but when a strong wind ploughs the surface of the ,desert at an angle1 these ,sands are lifted1 and made to gyrate in spiral folds1 and a huge column is formed--perhaps a hundred and fifty feet in height--and this monstrous trunk is presently carried along at whirlwind speed2 and if it meet a party of travellers1 they will be overwhelmed and buried4 ,it may be said that the sand is in very minute particles2 and this is true4 ,but if they are1 therefore1 the more easy to disturb and to catch up aloft1 they are all the more difficult to bind together in a spiral form1 and to hurry along the desert unbroken4 ,the power of the wind1 especially when it comes in sudden gusts1 and with a whirling motion1 against timber-trees and the upper parts of buildings1 is only too well known2 on wide1 exposed plains1 its fury1 in the early part of the year1 sometimes brings destruction to everything within its range4 ,but it is on the open sea1 where the hurricane1 once let loose from heaven1 can sweep1 unchecked1 perhaps for hundreds of miles1 that the latent forces of this unseen element are revealed in all their terror and majesty4 ,for here the wind not only has free scope1 but it also finds another element1 fluid but incompressible1 to obey its impulse and follow in the course which it takes4 ,if the ,,wind be like a wild spirit1 the ,,water is a mighty1 irresistible body1 endowed with motion by the other1 and capable of any work1 from the drowning of a sea-gull to the wrecking of a stately ship4 ,the waves which roll in from the open sea1 when the tide is making1 are the most powerful4 ,fortunately1 these do not reach the shore with quite the same force which they exert at the distance of some miles from it2 but in exposed situations1 their altitude and momentum are very great4 ,the billows of the ,atlantic which break on the western coast of ,ireland run from thirty feet to fifty feet in height1 and they arrive on that coast with an impetus which has 7up to a certain point7 been gaining strength1 perhaps for half the time of a tide4 ,it was this fearful onset1 from a foe that never slumbered1 which broke up and rendered useless the eastern extremity of the great ,submarine ,electric ,telegraph ,cable between ,ireland and ,america4 ,it has now been decided that when stormy winds prevail long in one direction1 another and peculiar force is given to the waves on which they operate4 ,for the wind1 by pressing long on the side of a wave1 changes its form from that of an upright ridge 7i4e4 with vertical axis7 to one which has a stoop or bend1 sometimes of great inclination4 ,such a wave will come in upon the shore with far greater momentum1 for its velocity has been enormously increased1 while its bulk is nowise diminished4 ,the speed which the water acquires under the influence of a prolonged sou'-wester on the coasts of ,sussex and ,hampshire1 although there the gale has only traversed the breadth of the ,channel1 is very notable at times4 ,at ,lowestoft and at ,peterhead1 easterly points of land1 the danger of the winds from the ,north ,sea is proportionally far greater1 as a larger body of water has been continuously acted upon4 ,for it must always be remembered that a wave at sea is simply an oscillation of the water which rises and falls in that place4 ,the identical wave does not pass on to the shore1 though it appears to do so2 it is the motion which is propagated1 and1 as it were1 handed on1 like an electric shock through the successive plates of a battery4 ,now this motion increases with the onward career of the gale4 8,vires acquirit eundo40 ,and when the mass of the fluid over which the wind is blowing has once been agitated1 and the equilibrium of its upper layers been thoroughly disturbed1 if the current of air not only continue1 but wax stronger and stronger1 there scarcely seems any limit to the momentum which the rolling wave may thus acquire4 ,the arithmetic of a few facts upon this subject will1 however1 give us some idea of what that momentum must be on certain occasions4 ,it has been found1 by experiment1 that the velocity imparted to an incoming wave sometimes equals seventy feet in a second of time4 ,now this would give nearly one mile in a minute1 if it were a projectile in free space2 but the case here is1 of course1 different1 since the wave is only a portion of the mass to which it belongs1 and no individual wave travels very far4 ,still1 the amount of rush and pressure which are exerted is altogether stupendous4 ,probably the breakers1 which in an enduring storm rise against a lighthouse in the open sea1 are among the strongest instances with which we are acquainted1 and1 next to these1 ,i suppose1 the billows off the ,cape of ,good ,hope4 ,but we may take those on the ,irish coast1 westward1 as a well-known sample4 ,i have often watched these--once in a gale of wind--and ,i have seen1 in one as yet unbroken wave1 a body of water which ,i should compute roughly at two hundred tons' weight1 and as having1 at the moment1 a velocity of not less than sixty feet in the second1 discharge itself upon the reef of rock4 ,on such occasions1 if you happen to stand on the shore1 you will feel the ground vibrate apparently1 though the sensation is probably electrical4 ,but let any one consider the conditions of the wave cited above1 and reckon what is the force of the blow at the moment of impact4 ,i have no doubt it would knock down a good strong house1 if delivered against the upright face of it4 ,one winter1 when ,i was at ,sandown1 in the ,isle of ,wight1 a spot frequently mentioned in these pages1 ,i found ,i was utterly unable to traverse the bit of open road reaching from the ,fort to the point where the lane turns off to ,yaverland4 ,yet ,i had on at the time a stout ,cording's waterproof1 with sleeves1 and a slouched hat tied under my chin1 and held a powerful oaken stick in my hand to help me win my way4 ,in fact1 it was a trial of dynamics between me and the gale1 whether this 8body10 acted on by a continuous muscular force1 in nearly a right line1 could be propelled through that resisting medium4 ,i am sorry to say1 it could not2 but1 in the attempt1 it lost a neck-button from its coat1 and was within an ace of being blown into the hedge1 like a certain 8man in ,thessaly1 wondrous wise10 whom we have heard tell of in our childhood4 ,this storm held on for seven or eight hours1 and as the sea rose many feet higher than usual under its influence1 when the tide was well in1 the strife of elements1 and their combined assault upon the works of men's hands were truly grand4 ,a breach was made through the solid causeway1 compact long ago of clay1 and gravel1 and boulders of flint1 and guarded seaward by dykes of timber4 ,this breach was effected1 ,i have no doubt1 by the stroke of the wave1 as the sword of ,roland is said to have cut through the rock in the fight of ,roncesvalles4 ,a wall of stout masonry1 not above five feet in height1 and supported behind by earthworks1 so as to resemble an escarpment1 yielded before the weight of water1 as a pane of plate-glass would give way at the charge of a locomotive engine4 ,some twenty yards' length of it was rent and thrown down4 ,on examining this fragment afterwards1 ,i found that the materials of the wall were solid blocks and angular bits of ,wenlock limestone1 and the cement used of the strongest4 ,i believe1 however1 if it had been three times as strong a barrier1 those waves would have levelled it4 ,i subsequently witnessed in that very neighbourhood a yet more furious tempest of wind1 but had no opportunity of measuring its effects4 ,at ,eastbourne1 about two years age1 ,i made acquaintance with a phenomenon in this line which was altogether new to my experience4 ,we had a tremendous gale late in the autumn of #aheg4 ,i cannot exactly cite the quarter from which the wind blew1 as ,i do not accurately know the points of the compass in their bearing on the town and bay2 but the storm seemed to beat in from the south-east1 as it faced the ,marine ,esplanade4 ,i went forth1 with perhaps a score of others1 to gaze upon this magnificent 8encountering shock0 of earth1 air1 and water4 ,we were all of us drenched to the skin by the dashing spray1 and occasionally well-nigh swept off our legs by the gust2 but we held on stoutly1 till something saluted those nearest the beach1 which rendered a retreat imperative4 ,this was not the salt spray1 nor the rattling hail neither1 but a cloud of 8skirmishers0 in the shape of pebbles and gravel from the strand below4 ,the sea had actually lifted the surface of the bed of beach1 and whirled aloft some bushels of its solid contents4 ,a coast-guard told me next day1 that he saw a 8flight0 of pebbles1 some of them as big as hens' eggs1 at least thirty feet high in the air2 and he added1 that if the direction of the wind had changed a little1 every pane of glass on the ground and first-floor of the ,esplanade must have been shivered to atoms4 ,as it was1 of course much damage was done to windows and sashes2 but not by the actual pebbles4 ,after this gale had subsided1 ,i ascertained by personal inspection that some hundred tons' weight of solid shingle had been moved along the shore a distance of a quarter of a mile1 in the space of a few hours4 ,this was by the sidelong drag of the tide4 ,the village of ,seaford1 on this same line of coast1 had long been in great danger of being swept away by the tide4 ,its outworks and very standing ground were perceptibly yielding1 season after season4 ,about eight years ago1 the inhabitants took the alarm1 and drew up a remonstrance and petition1 which were duly forwarded to the authorities4 ,proper officers were deputed to go down from ,london and report2 and the result of their representations was that an able engineer from head-quarters was empowered 8videre ne quid ,respublica detrimenti capiat20 or1 in the modern vernacular1 to see that the ,queen's lieges in ,seaford suffered no wrong4 ,the remedy hit upon was simple and forcible2 but1 assuredly1 it was an instance of what is called 8,hobson's choice40 ,the engineer said1 8,there is only one thing to be done2 a solid breakwater must be formed west of the town1 to break the rush of the sea and divert the course of the current4 ,we will throw down a section of the chalk-cliff2 that will make a mound1 on which works of masonry1 if necessary1 can be erected afterwards40 ,this was done about two miles east of ,newhaven1 by firing an enormous charge of gunpowder in chambers drilled in the limestone4 ,i went over from ,brighton to witness it1 and the sight was a striking one1 as soon as the smoke and dust consequent on the explosion had cleared away4 ,the operation1 neatly conducted with an electric battery1 proved successful2 and its result1 in the amount of chalk thrown down on the beach1 was judged sufficient for the time4 ,but for this 8pice de resistance10 ,seaford might by this be in a fair way to furnish to future generations a gigantic specimen of a marine fossil4 ,the danger to ,seaford arose not from storms or any casual visitations1 but from the steady continuous action of the tide encroaching on the line of coast where the town stands4 ,whether the chalky breakwater above described will long suffice to counteract this elemental mischief may be doubted4 ,if after a while it should prove inadequate1 the operation will have to be repeated on a larger scale4 ,the height of the tides at sea is always known2 and it varies little1 depending upon astronomical causes1 chiefly on the attraction exercised by the moon4 ,but on shore1 and inland in certain rivers1 the case is widely different4 ,here the land itself1 with its rocks and embankments1 introduces artificial conditions which influence the local tides in an extraordinary manner4 ,thus1 at ,chepstow1 by the ,castle rock1 the rise of a spring-tide is sometimes as much as sixty feet perpendicular4 ,in ,mount's ,bay1 ,cornwall1 it is fully forty feet2 while in the north of ,scotland on the coast1 it does not average more than ten4 ,the tides have other variations beside this of local magnitude2 and one of these1 which takes place along our southern coast1 is interesting and important1 but was little known till the ,admiralty surveyors went to work4 ,it may be briefly described as follows4 ,as far as ,scilly ,isles and the ,lizard's ,point1 the great tidal wave1 which twice in every twenty-four hours flows in from the ,atlantic1 maintains pretty nearly the same level on the opposite shores2 and this continues as far as ,exmouth on the ,devon coast1 and ,st4 ,malo on that of ,brittany4 ,but when this great wave reaches the 8,needles0 which form the westerly point of the ,isle of ,wight1 it divides into two very unequal portions4 ,of these1 the southern and larger portion sweeps round the base of the island1 passing ,freshwater and ,chale and ,blackgang1 and then rounding ,st4 ,catherine's promontory and running up to ,dunnose with scarcely-diminished velocity2 but the northern and smaller half enters the ,solent1 and owing1 it is supposed1 to the resistance of two shores 7by friction7 to its progress1 advances but slowly1 and does not arrive at ,southampton ,water before the other has made ,dunnose and is filling ,sandown ,bay with a back-stream4 ,this causes many differences in the amount of water at almost any given moment on the two sides of the ,isle of ,wight1 north and south2 and it gives rise to many curious varieties of tides1 real or apparent4 ,in one spot near ,shanklin1 my attention was frequently drawn to the fact of a partial tide suddenly flowing1 for perhaps the space of an hour1 during the time of ebb4 ,but this is not the only 8water-company0 here at work1 nor is the above the only class of phenomena resulting from such agency4 ,beside the tide-wave there is the ,ocean-current1 which is quite a distinct thing4 ,this current is due to a branch of the ,gulf-stream2 and it flows here from west to east1 and from south to north4 ,that is to say1 after leaving ,newfoundland1 so much of it as actually reaches ,britain would run up ,st4 ,george's channel northwards1 and up the ,english channel eastwards4 ,and although the velocity of this current is but trifling1 yet1 owing to its unceasing action in one direction1 its effects are remarkable4 ,moreover1 it is not affected by the waves2 whether the sea be sleeping in a calm or tossed with storms1 the motion of the current is the same4 ,the only change as yet observed is when its waters come to the surface and have their temperature lowered by a chill wind2 for1 this gulf-stream is itself a river of warm water1 though its bottom and banks are of the same element cold4 ,thus1 between tide-waves and currents1 changes are going on continually both in the volume and the physical constitution of the sea-water4 ,and this1 which might at first on a hasty glance look like casual and unimportant variation1 when we come to consider it attentively1 is found to be an arrangement fraught with wisdom and beneficence2 for it insures continual variations of temperature1 it attracts the purifying storms1 restores the elastic spring of the atmosphere1 and provides for weary man a healthy tonic breeze when he rambles along the beach or scales the face of the cliff4 ,without the motion imparted by the tides1 the sea would probably become putrid4 ,now the tides depend upon the ,,moon2 yet how seldom do we think of her invaluable services1 when we gaze upon her pale face6 ,an ,italian once told me that he 8loved the moon1 adored the moon1 never tired of looking at the moon40 ,and the ,padishah1#d ,i have heard say1 prefers 8moon-faced0 ladies for his soft companions2 but ,i doubt whether either the pensive ,italian or the glittering lord of the ,bosphorus ever bestowed five minutes' thought on the mighty phenomenon of the ,,tides4 ,there are other changes in what may be termed the tidal 8high-water mark10 due to the lapse of ages1 which the sea has chronicled on the face of many a shore and cliff4 ,it is well known that the coast-line1 in this and other countries1 has experienced many alterations as to its level4 ,in some places1 the ocean has apparently encroached upon the land2 in many others1 it has receded4 ,one striking index of this latter1 and which may be implicitly trusted as proving the fact1 occurs where the waters have retired from their former level1 and have left exposed to view the remains of an ancient beach4 ,thus1 between ,brighton and ,ovedean1 is found what goes by the name of the 8,elephant-bed10 because such fossil bones lie among the pebbles in this part of the cliff4 ,the entire stratum undoubtedly was at one time a beach4 ,similar phenomena have been traced along the coast-lines of ,arbroath and ,cromarty shires4 ,elsewhere1 the sea has gained upon the land2 undermining the friable sandstone cliffs1 and1 as it were1 melting down the headlands1 so as to change the outline of the coast4 ,but in these latter instances1 although 8terra firma0 has given way1 it may be doubted whether the water itself has risen4 ,wherever it has indubitably done so1 to the extent e4g4 of submerging a village1 ,i should apprehend the presence of volcanic agency4 #d ,sultan1 8,father of the ,faithful40 ,,chapter ,,ix4 ,,geology ,,lies ,,at ,,the ,,bottom ,,of ,,earthly ,,things4 ,there seems to be no strong reason for doubting that every elementary substance of which we have any knowledge was separated at the first from that crude mass called 8the earth10 and which1 along with 8the heaven10 ,god created in the beginning4 ,for1 after that first assertion1 we read of continued acts of 8separation0 by an ,almighty fiat4 ,thus light is separated from darkness2 waters from waters2 water from earth4 ,and by a like analogy we may suppose that the 8firmament0 or atmosphere1 the lower part of which we breathe1 was also eliminated in its component gases from the primitive shapeless bulk of matter4 ,if we take forty-five miles as the average height of this atmosphere above the surface of our globe1 it is proportionately1 like the thin rind upon an apple1 or the bloom upon a peach2 and may very well have come forth without any violence done to nature1 or any waste of her resources1 from the womb of the earth4 ,,oxygen is a gas universally diffused1 for without a large supply of it human beings and all the mammals1 birds1 and reptiles1 would die4 ,but oxygen is not a more simple element than ,,carbon or ,,silicon2 and silicon is almost as universal1 for it enters largely into the composition of all known rocks1 excepting coal1 limestone1 and rock-salt4 ,then1 beside silicon and carbon1 there is ,,boron1 and many others1 all of which will combine permanently with the principal gases1 and which we may1 therefore1 fairly suppose did so in the beginning4 ,the oxygen which we breathe enters into composition with almost all known substances4 ,it constitutes about one-fifth of the atmosphere1 perhaps eight-ninths of the water1 and helps chemically to compound all forms of earth and rock1 and all the metals save five4 ,now this proclaims at once a kindred element1 and does not look like a substance made independent of all the others at the first4 ,even potash and soda1 which were long called 8fixed alkalis10 having resisted all attempts to decompose them1 yielded at last to a galvanic process1 and were found to be compound2 oxygen1 in both cases1 having united itself intimately with a metallic base4 ,it is probable1 therefore1 that every substance which we can handle1 or of which we can recognize the presence by a chemical test1 was as truly a part of the chaotic ,earth as was the clay or the granite4 ,the gaseous atmosphere or 8firmament0 was eliminated by an act of creation from the torpid mass1 the waters were drawn off and gathered together1 the rocks consolidated1 the metals precipitated1 most of the crystals were probably perfected by galvanic operations4 ,but there is nothing1 from the crystallized blocks of the mountains to the salt held in solution in the sea1 from the heavy rain-cloud which darkens the sky to the gossamer films of vapour which fringe the outermost edge of our atmosphere1 which was not actually present as an existing particle when the ,earth1 8,mother-,earth10 was made4 ,and the ,,earth1 as we see1 could very well furnish all these concomitant and subsidiary elements1 without being impoverished at all4 ,indeed1 as far as experiments and investigations proper have gone1 we have as yet only touched the surface of our globe4 ,the deepest mine which men have ever sunk into the bowels of the earth bears in its depth the same proportion to the earth's radius1 as a line1 or one-eighth of an inch1 bears to the height of the monument at ,london ,bridge4 ,some of the exposed strata of rock1 allowing for the tilting-up of their edges1 certainly reveal a deeper sample than this2 but still1 it is like the prick of a pin on the hide of a rhinoceros2 it does not even penetrate the creature's folded hide2 but of what lies within it tells us nothing4 ,mr4 ,baily's successful attempt at 8weighing the ,earth10 which1 with consummate patience and skill1 he brought to a termination in his house in ,tavistock ,square1 has established the physical fact that this planet is not 8a hollow sphere10 as some persons had supposed1 but solid1 probably to its very centre1 and of considerable specific gravity4 ,here is a mighty mass of ,matter2 it may be1 as ,dr4 ,whewell has argued1 the greatest mass 7in solid contents7 in our ,solar system4 ,what do we know of its interior construction1 economy1 and arrangement8 ,nothing1 except that all obey the laws established by the ,creator1 whether those of gravitation1 cohesive attraction1 or chemical combination4 ,the 8statistical report0 is wanting1 especially in such departments as those of the ,trap and ,volcanic lavas4 ,the amount of ,,salt in the ocean is a circumstance which geologists have not1 ,i think1 sufficiently considered4 ,this salt1 if precipitated1 would1 it is believed1 yield a solid range of mountains equal to that of the entire ,himalaya4 ,now1 mighty rivers run into the sea1 as those of ,la ,plata1 ,amazons1 ,mississippi1 ,st4 ,lawrence1 ,orinoko1 and many others2 but none of these rivers are salt2 they are enormous bodies of fresh water4 ,how1 then1 does the ocean maintain everywhere its saline character unimpaired8 not to ask1 whence did so much salt come8 ,there is1 indeed1 a hill of salt in ,spain1 and there are mines of rock-salt in ,poland and ,hungary2 but the effort which was made1 so to speak1 when the proportion now existing in the ocean was squeezed out of the huge terrestrial sponge1 must far have exceeded that of any subsequent addition or contribution4 ,the ocean itself1 as girding this globe1 is a prodigious mass of water1 indeed4 ,but1 if we remember the size of the globe itself1 as given by its diameter1 ,ocean appears like a rain-pond4 ,for1 if we call its average depth five miles--and it cannot be more than this1 may be much less--such a watery envelope would be represented in its proportion to the solid sphere which it surrounds1 by a coating of varnish of the thickness of this paper lying on a globe which is twenty feet in diameter4 ,the ,,coal-,,measures are also a remarkable item in the list of substances met with in beds and ranges1 and claiming to be considered as rocks--for the coal is a petrifaction1 perhaps a partial crystallization--but due to the deposition of vegetable matter1 subjected afterwards to enormous hydrostatic pressure4 ,we have no true estimate of their amount as yet1 for fresh mines are being continually discovered2 but here seems to consist the chief proportion of ,,carbon1 as developed in this part of the visible creation4 ,,chalk constitutes one-eighth part of the crust of this globe4 ,the mass of this must have been thrown up at once1 when the atmosphere was eliminated1 and the waters separated1 and the sphere became condensed and solid4 ,it is a 8carbonate of lime0 in its chemical description1 and there is abundance of the limestone-rock all over the world2 but it is very difficult to extract from this1 in any quantity1 the soft1 friable1 slightly unctuous mineral which goes by the name of chalk 7,latin1 8calx074 ,the ,,metals exist in the rocks1 generally some distance down in the earth's interior4 ,their amount1 in some instances1 is very great indeed4 ,the only one which is rarely met with on our globe1 and then in small grains1 is the ,,native ,,iron1 i4e4 iron in its pure state4 ,this want1 however1 could not have been recognized if we had not happened to find the substance in question in those blocks of meteoric iron1 and in the small meteoric stones which have1 from time to time1 fallen to the surface of the earth during atmospheric storms1 and1 probably1 owing to astronomical disturbances4 ,for1 of the iron1 in its mixed conditions of different ores1 we have an abundant supply4 ,it is a singular fact1 that the native gold1 both in pure grains or flakes1 and in solid 8nuggets10 appears now to be the more prevalent form of that ponderous and imperishable substance4 ,the ranges of quartz-rock in many chains of mountains are certainly thickly sown with seeds and nodules of fine gold4 ,i may mention here1 as an interesting circumstance to mineralogists and collectors of fossil pebbles1 that the 8native iron10 which is so scarce on the surface of the ground1 is met with1 from time to time1 along with manganese1 in the heart of siliceous pebbles4 ,but ,i have never seen it where there is not the presence of some animal organism4 ,now all these solids1 gold1 iron1 chalk1 coal1 salt--and ,i select incongruous items on purpose--are as truly portions of the earth's mass as are the granite and slate1 the sandstones and clays4 ,and so are also the flowing waters and the suspended clouds2 and so are also the component elements of these--oxygen1 hydrogen1 and the rest4 ,it is1 all of it1 ,,matter2 it all obeys the law of gravitation1 and it needs just as much to be taken into account1 in a geological scheme or system1 as the upheaving of granite rocks1 the flux of lavas1 or the icthyolite beds amidst the semi-crystalline ranges of the ,old ,red ,sandstone formation4 ,consequently ,i have found1 as has partly ,i trust been shown in the preceding pages1 that even to handle and pronounce upon a pebble1 such an one as we can pick up on the sea-shore any summer's day1 all these elements must be taken into the account4 ,in a 8moss-agate10 for instance1 ,i discover-- ,first4 ,a sandy cuticle1 which we will rub off1 as it is like the dust on your drawing-room table1 a real thing1 but out of place4 ,secondly4 ,siliceous matter4 ,thirdly4 ,a purer form of this in chalcedony4 ,fourthly4 ,the 8moss10 which is a metal proper1 tinged by oxidation4 ,n4,b4 ,here is oxygen inside a pebble6 ,fifthly4 ,the whole or a part of some extinct animal's petrified structure4 ,sixthly4 ,one thing more1 sometimes a drop of water4 ,seventhly and lastly4 ,air1 permeating the stone in fine pores and channels1 one of the largest of which was in some cases a breathing-hole used by the zoophyte before he drew his last gasp4 ,who shall therefore say that a ,,pebble from the sea-shore has nothing remarkable in it or about it1 merely because the passing schoolboy can pick it up if he pleases1 and1 without looking at it for a moment1 can fling it at the head of a gull1 or dash it to atoms against a larger stone8 ,it is a microcosm in itself2 and if it lead us on to further inquiry and patient thought1 it will amply repay our trouble1 though we have loitered away a summer morn or an autumn evening among the ,pebbles of the ,beach4 ,,chapter ,x4 ,,guesses ,,at ,,the ,,probable ,,features ,,of ,a ,,past ,,scene4--,,what ,,was ,,the ,,earth',s ,,commencing ,,rotation4--,,law ,,of ,,the ,,tides ,,at ,,such ,a ,,time1 ,,and ,,corresponding ,,action ,,of ,,the ,,sea ,,upon ,,the ,,land4--,,original ,,character ,,of ,,these ,,fossil ,,forms4 ,whatever may be thought of the apparent scope or tendency of some of the geological theories which are rife in the present day1 no person who has really considered the subject in its principal bearings has any doubt that the surface of our globe1 both as to the land and the water1 was once very different from what it is now4 ,all sound argument must allow this to be possible3 all careful investigation pronounces it to be the fact4 ,there are potent 8menstrua0 and mighty furnaces in the laboratory of ,nature2 and while the actual amount of ,,matter in existence has1 we suppose1 never varied since the original creative act which gave birth to 8the heaven and the earth10 the conditions1 sensible or chemical1 under which that matter presents itself have altered from century to century and from moment to moment4 ,it is impossible to deem otherwise1 if we believe that the 8laws0 which are established now in this creation were established then4 ,let us take1 for instance1 the law of ,universal ,gravitation1 that law by which the heavenly bodies move in their orbits1 and a seconds' pendulum measures time at the surface of our ,earth4 ,we feel assured that this law has never varied2 but it is almost equally certain that it must have begun to operate under different conditions from those which obtain at this day4 ,newton1 who always maintained that the commencing axillary movement of the ,earth was due to an impulse from the hand of the ,creator when ,he launched it into space1#e and who declared that without this he could in no way account for its having rotatory motion at all1 was nevertheless willing to allow that the time occupied in the first rotation may not have been1 as now1 twenty-four hours1 but possibly an entire year4 ,and as the ,earth1 once projected1 would fulfil1 according to the ,law of ,gravity1 the conditions of 8a body falling through space10 we find that taking the nth term 7#bn-#a7 of the arithmetical series ''' #a4 #c4 #e4 #g4 ''' 7#bn-#a7 ''' where the successive terms represent the velocities acquired in successive annual periods1 about #ahc such terms must elapse before #cfe rotations would be accomplished within the space of one year1 or1 in other words1 the rotation of the earth be diurnal1 as at present4 ,this point of speed once reached1 the centrifugal and centripetal forces balanced one another1 and the axillary movement became steady4 ,of course1 in the above hypothesis1 the assuming of one year for the first period is arbitrary2 it may have been more1 it may have been less2 but within certain limits there is no absolute reason for supposing that it was a span of twenty-four hours1 as now4 ,revelation nowhere asserts such a dogma4 ,supposing1 then1 amid confessed ignorance as to how the fact stood1 that the ,earth's early times of rotation were far longer than now1 and taking1 say1 one year as the first period1 how would this influence other features in a scene which has now long gone by8 ,how would it influence the ,tides of the ,ocean8 ,assuming a correspondingly slow motion of the ,moon in her orbit1 we should1 it seems1 have in the lapse of the first year one rotation of the ,earth and two ,tides of the ,ocean2 in the second year1 three rotations of the ,earth and six ,tides answering to them2 and so on4 ,now these flowing ,tides would1 in fact1 have been vast inundations1 the sea rising steadily for many months together2 and in like manner the prolonged ebb which followed upon each flood would have given rise to a subsidence and to the deposition of such particles of mud1 lime1 silex1 c41 as the waters then held in solution after their visiting the higher land4 ,and thus we see at once1 without going further1 that the agency exerted by the ocean in ancient times may probably have been different from and greater than any with which we are now actually acquainted1 save in the account given to us1 in the inspired ,record1 of the ,deluge in the days of ,noah4 ,when such mighty agencies were in operation1 it is not unreasonable to suppose that great changes took place in the way of partial extinction of animal life1 and the substitution of new forms to fill up the apparent gap left by the perishing creatures4 ,the contents of the upper chalk1 of the greensand1 gault1 and sandstones1 as has already been observed1 point to such revolutions and cycles in the history of animated nature4 ,,man1 who is himself an evident exception to all this1 may perhaps1 as an exception1 be said to prove that such had been the rule4 ,for1 it must be remembered1 all the creatures were pre-,adamitic4 ,not only those vast saurians and mammals1 whose fossil remains we have exhumed1 and cannot contemplate without wonder1 were prior to our race in their actual possession of the domain of the earth's surface1 but every bird1 reptile1 fish1 and zoophyte were certainly made before the man4 ,now1 as the man came last in order1 but first in dignity1 created in his ,maker's image1 and endowed with dominion over all the works of ,his hand1 there was no longer place or argument for extinction1 substitution1 or change1 among the creatures4 ,death was excluded1 and could not enter into the world1 unless by a moral delinquency of the chiefest creature4 ,but already it is probable1 although he perhaps knew it not1 ,man stood1 even in the day of his innocence and happiness1 in the midst indeed of a blooming creation1 but upon the crust of a fossil world4 ,moreover1 we know from ,scripture that minerals find metals abounded2 so that the presence of these near the ,earth's surface ought not to be referred 7as by some they have been7 to the epoch of ,noah's ,deluge4 8,gold and bdellium and the onyx-stone0 were already in the 8land of ,havilah20 and ,tubal-,cain was 8an artificer in brass and iron10 which must therefore have been exposed in veins of the upper rocks4 ,and if the ,earth already showed her nuggets of gold and lumps of onyx1 it is not likely that she was deficient in beautiful fossils4 ,certainly1 such substances as manganese and native iron did not find their way into the heart of siliceous pebbles in modern times4 99 99 99 99 99 ,but it by no means follows from the above1 that all these fossil forms belonged to creatures whose species are wholly extinct4 ,indeed1 in some instances1 this cannot be allowed for a moment4 ,probably1 the 8choanite0 is extinct4 ,i doubt whether the 8ventriculite0 be so4 ,dr4 ,mantell was pleased to assume that this last-mentioned zoophyte grew--like one of the 8mushroom0 class of plants--rooted to one spot4 ,there is no evidence for this whatever1 and my impression leans another way4 ,in the class of marine 8,acrita0 termed ,acaleph1 there is a family which bears the name of ,rhizostoma4 ,these animals are composed mainly of a large1 mushroom-shaped1 gelatinous disc1 and of a supporting central pedicle4 ,in structure and function this latter organ much resembles the root of a plant2 and1 no doubt1 it absorbs nourishment by seizing upon the minute animalcul which abound in the water where the 8rhizostome0 is floating about4 ,the entire animal is very like a toadstool1 or 8agaricus10 in form2 but for all that1 he does not grow1 as a plant1 in one spot1 but is always sailing about by means of his large disc above-mentioned4 ,his general appearance closely resembles that of a 8ventriculite0 from the flint2 and ,i think it a probable guess to assign them to the same species4 ,the 8branching alcyonite10 on the other hand1 did1 ,i imagine1 grow1 like a ,coral or 8,encrinite10 in one place2 and ,i suppose it was much like an ice-plant in form1 but that it had the power of drawing back at will all its branches and suckers--which were1 in fact1 the creature's arms and tentacles--into the root or bulb which formed its base4 ,the 8sponges10 a large family1 we know are not extinct2 and the conformation of the living individuals fully bears out all the marvels which have been predicated of the fossil animal4 ,i have handled these creatures1 fresh from the sea1 at ,brighton2 and ,i had an unpleasant consciousness1 while holding one in my hand1 that the round1 greenish1 jelly-like bush was only his house2 but that the gummy fluid1 which held possession of it after squirting out the sea-water1 was the individual himself1 though independent of the accessories of bone and muscle4 ,this kind of 8sponge0 floats about3 there is another1 well-known among submerged rocks1 which is fixed1 and grows4 ,i believe the fossil specimens to have belonged to the migratory class4 ,i once picked up1 near ,hove1 a pebble which contained a fragment of the lungs of a tortoise2 the elevated ridges1 and depressed pulmonary cells1 appeared to have left their peculiar structure in the flint4 ,i have mislaid this specimen1 and so cannot give a sketch of it here4 ,the 8holothurida10 or 8sea-cucumber10 is found occasionally in the ,isle of ,wight1 beautifully fossilized4 ,a specimen was shown to me1 from the beach near ,chale2 it was a variety1 but unquestionably of this class of animals4 ,a fossil1 figured in one of the 8chromo-plates0 to this volume1 has obtained the name of a 8troglodyte20 ,i do not know why4 ,i suspect it was one of the 8asterid0 when alive1 but that in the death-struggle1 the long arms collapsed and twisted together4 ,i have frequently found what ,i believe to have been some such organ as the stomach of a star-fish in the centre of hard pebbles4 ,the form was always pentagonal1 like the corolla of certain flowers pressed flat4 ,the 8myriapod10 depicted in ,plate ,v41 ,i should at once conclude to have been a marine insect1 answering to some of our 8scolopendrid10 if the head were not lacking4 ,but since the back or spine in this fossil is all in one piece1 and there are no lateral plates or divisions for the several pairs of feelers1 it may be1 in accordance with such a frame1 that the head fitted on without the apparent juncture of a neck2 and if so1 this may be an entire insect4 ,it is right however to add1 that ,i feel some doubts about this4 ,the ,plate ,,vi4 contains a figure of a fossil to which ,i have attached the name of 8,spindle-choanite40 ,in fact1 the specimen1 until cut in twain1 was fusiform2 and1 ,i have no doubt1 a complete animal4 ,the choanite from ,eastbourne1 uncut1 ,pl4 ,,iv41 portrays a creature who1 ,i think1 expired in a vehement struggle4 ,this would keep him on the surface of the siliceous flood2 and it would harden1 for the most part1 beneath him1 leaving his limbs sprawled out on the top of the pebble1 as now seen4 ,the beautiful 8pyriform0 specimen1 ,pl4 ,,vi41 shows a similar struggle1 amidst liquid agate and manganese4 ,in the large ,actinia1 or 8star-choanite10 portrayed in the frontispiece1 the happy animal died quite quietly2 and that is why his fossil mummy is of such a noble size and development4 ,the figure called 8,nondescript10 ,pl4 ,,iv41 ,i do not think represents any complete animal1 but a part of the organization of one4 ,i have traced its likeness1 in the 8,animal ,kingdom10 by ,t4 ,rymer ,jones2 and think it not improvable that a woodcut at p4 #cfd of that most interesting volume depicts1 in the arms of one of the 8,brachiopoda10 in that 8calcareous loop0 with its curved 8crura10 the exact structure which1 in the living animal1 served to open or shut the bivalve shell1 but in the fossil specimen looks like a miniature-painting on ivory1 to perpetuate some curious organism in the liveliest colours of the pallet4 8,terebratula ,chilensis0 is ,mr4 ,rymer ,jones's animal2 and in the very vicinity where ,i found my fossil in question1 ,i have since obtained1 in a flint pebble from the cliff1 a beautifully petrified 8,pecten0 7same species of shell7 in agate4 99 99 99 99 99 ,i might multiply remarks and instances such as these2 but it is not needed4 ,every one will form their own opinion1 in collecting fossil pebbles1 as to what the originals were2 but ,i think they will generally agree with me1 that while our living individuals differ in many points1 still we have mostly types of the same species actually existing in our present seas4 ,what all connoisseurs1 and even amateurs1 should do1 is to preserve every remarkable specimen they may obtain1 along with an accurate note of where they got it4 ,it is a great pity that1 among so many persons who have at once discernment and a liking for this branch of ,mineralogy1 there are so few who will be at the trouble of what lawyers call 8taking minutes0 of the evidence which comes before them in the course of the pursuit4 ,i have looked over several fair enough collections made by amateurs2 but1 with one exception1 ,i never knew an instance in which the collector could tell me1 with any degree of certainty1 from what particular beach he had gathered this or that specimen4 ,of course1 when a scientific investigation is proposed1 such omission renders the most valuable part of the collection comparatively useless4 ,for the locality is all-important4 ,a pebble may thus be always traced to its geological 8home0 or birthplace4 ,it can only have had one of three sources3 either it was first dropped here1 where you find it2 or1 it is a 8travelled0 pebble1 having come round from some distant beach2 or1 it is an offering from the deep sea4 ,the latter case is of exceedingly rare occurrence1 and need hardly be taken into account2 nevertheless1 for truth's sake1 and to include all possible varieties1 ,i cite it here4 ,a genuine deep-sea pebble is a waif which ,i have only twice1 as yet1 met with in my sea-side experience4 ,one of these was1 ,i think1 fished up in a dredging-net2 the other was thrown on the beach during a storm4 ,in both instances1 the fossil was a 8choanite10 and bore the marks of having been washed out of a limestone rock4 ,the age of such fossil could not have been less than #djjj years1 the date of ,noah's deluge1 for obvious reasons2 but it may have been considerably greater4 ,if there were any known method of softening these pebbles to a consistency like that of melted glue1 we might learn something concerning their past history2 but ,i am not aware of the existence of any such process at present4 ,silex1 once hardened into the condition in which we meet with it1 is a most intractable substance to deal with2 and the very fact of its having at one time been viscous1 renders it highly improbable that1 in the course of nature1 its texture will ever assume a plastic character again4 ,moreover1 while the majority of our flints are concretions1 there are some which are semi-crystalline4 ,these latter1 it is evident1 cannot now advance to the stage of perfect crystals2 but neither can they retrograde3 the next change which awaits so hard a substance must be1 to crumble away4 ,sometimes1 on our beaches1 hollow globes of flint are picked up1 which1 when you break them open1 are found to be full of a white1 powdery substance1 like the chemist's magnesia4 ,this is much the same as the 8rock-milk0 of mineralogists1 a very fine deposition of lime1 occasionally met with in beds of the chalk strata1 and considered to be a result of some filtering process1 when the water1 after being long pent up1 had escaped by small crevices4 ,but in the flint-globes no such straining can have taken place2 and in sundry specimens which ,i have examined1 ,i generally came to the conclusion that some conchiferous animal had been inclosed in the nodule1 and his shell had afterwards broken and been pulverized4 ,sometimes ,i found within the 8rock-milk0 a dark-brown1 carbonaceous spot2 this would be the creature's body1 as ,dr4 ,mantell supposes of his 8molluskite40 ,the cavity is never quite filled up4 ,i imagine many of these 8powder-horns0 to be altogether modern in their date4 ,a much more curious phenomenon than the above occurs from time to time in solid agate-pebbles1 which1 when picked up1 are found to contain in a central chamber1 visible to the eye1 a drop of water4 ,these are scarce1 and fetch a high price at the museums4 ,as much as twenty pounds has been more than once given for an undoubted specimen4 ,how the above-mentioned singular effect was arrived at1 has1 ,i believe1 never been explained2 at least1 not so as to satisfy a close reasoner4 ,the same lusus natur is met with1 ,i think more frequently1 in rock-crystal and in the dark fluor-spars4 ,the last apparent animal organism which ,i shall notice1 as having more than once occurred to me as a possible explanation of the patterns disclosed in certain sections of agate-pebbles1 is that of some creature's 8ovary40 ,the eggs of the whelk1 and those of the cuttle-fish1 are deposited in clusters1 like some of the 8grapes0 on sea-weed4 ,i have found1 in some of the ,isle of ,wight pebbles1 a conformation closely resembling this1 but on a much smaller scale4 ,that the original substance was part of an animal1 ,i have no doubt whatever2 and the arrangement of the lobes or spherules1 composing the mass1 more resembles that of the spawn of the above-named fishes than anything else which ,i am acquainted with4 ,still1 resemblance is not identity4 ,the thing may be only a curious coincidence1 resulting from some unexplained freak of nature2 as when she carved the profile of ,napoleon's face in the outline of a part of ,mont ,blanc1 and also 7quite as distinctly7 in that of a hill which overlooks the town of ,belfast4 #e ,see his ,letter to ,dr4 ,burnet4 ,,references ,,to ,,the ,,chromo-,,plates4 ,in the frontispiece is represented the polished section of a pebble which the author picked up on the beach at ,bonchurch1 in the ,isle of ,wight4 ,this is an unusually large and perfect specimen1 the body of the ,choanite lying nearly central4 ,the pebble contains one or two blotches of native iron4 ,the 8cuticle0 is uninjured4 ,,plate ,i4 ,fig4 #a4 ,this is a slice from a lump of 8conglomerate0 found on the beach at ,sidmouth4 ,the white parts are sections of the nodules of quartz1 the red and yellow are jasper4 ,fig4 #b4 ,a section of an 8,alcyonite0 from the bay of ,sandown4 ,it formed part of a large pebble4 ,,plate ,,ii4 ,fig4 #a4 ,this is1 ,i have no doubt1 a fossil 8,actinia40 ,i have often looked on the exact living resemblance of it at the fish-house in the 8,zoological ,gardens10 where it is fond of clinging like a limpet against the vertical pane of glass in an aquarium4--7,found in ,sandown ,bay47 ,fig4 #b4 ,i suppose this half of a pebble to represent the internal structure of some creature which dwelt in a bivalve shell4--7,sandown ,bay47 ,,plate ,,iii4 ,fig4 #a4 ,this sponge1 a faultless specimen of the kind1 is from the ,brighton beach4 ,it was the first pebble ,i ever picked up there4 ,fig4 #b4 ,the body and arms of this ,choanite are in white ,agate2 the remainder of the stone is a dark moss1 formed chiefly of ,manganese1 and surrounded by a yellow flinty rim4--7,brighton ,beach47 ,,plate ,,iv4 ,fig4 #a4 ,a ,nondescript3 but1 probably1 the creature was of the vermicular kind4--7,brighton ,beach47 ,fig4 #b4 ,a handsome ,choanite1 uncut1 but polished over1 so as to show the points of some of the feelers4--7,found at ,eastbourne47 ,,plate ,v4 ,fig4 #a4 ,an 8,eyed0 ,jasper1 from the beach near ,shoreham4 ,it contains yellow 8oxide of iron10 and some dark green flint4 ,fig4 #b4 ,a 8,myriapod40 ,this fossil is a very handsome one1 and ,i have another1 closely resembling it1 from the same locality1 in ,sandown ,bay4 ,the dark1 reddish spot1 is of the nature of ,molluskite4 ,,plate ,,vi4 ,fig4 #a4 ,a ,spindle1 or ,fusiform ,choanite1 when the pebble was entire4 ,i do not possess a more perfect specimen3 the ,chalcedony is remarkably fine1 and the 8oxide0 of a rich tint4--7,sandown ,bay47 ,fig4 #b4 ,pyriform ,choanite1 uncut4 ,here1 again1 the creature lies over the surface2 and1 as ,i conceive1 from the position which it occupies1 was swimming for its life4--7,found at ,rottingdean47 ,,plate ,,vii4 ,fig4 #a4 ,an 8,asterid40 ,this is different from all the other creatures in these fossils4 ,its position in the heart of a solid limestone pebble is singular4--7,beach at ,hove47 ,fig4 #b4--8,terebratula40 ,the entire pebble was formed inside of a 8,pecten0-shell1 and inside the pebble lies this formation1 which was a living organism connected with the hinge4--7,beach near ,luccombe47 ,,explanation ,,of ,,certain ,,terms used in this ,volume4 8,hard30 that which will cut or scratch other substances4 ,example4--,a diamond will cut glass4 8,tough30 tenacious2 whose particles are difficult to separate from one another4 ,example4--,jasper1 though not nearly so hard1 is more 8tenacious0 than diamond4 8,transparent30 through which we can see objects4 8,translucent30 through which we see light4 8,opaque30 through which we can see nothing4 8,brilliant30 reflecting or refracting the light in rays and flashes4 8,vitreous30 glassy in its texture4 8,conchoidal30 convex1 like the outside of a shell4 8,momentum30 the result of the combined weight and velocity of a body in motion4 ,,geological ,,strata referred to in this ,volume1 arranged in their descending order4 ,names of ,strata4 ,mineral products4 ,lava ,pumice-stone1 which is its froth or scum4 ,granite ,corundum1 sapphires1 felspar4 ,old ,red ,sandstone ,fossil ichthyolites4 ,carboniferous ,series ,coal1 lignites1 jet4 ,new ,red ,sandstone ,jaspers1 fossilized wood4 ,lias of the ,oolite ,fossil 8,saurians40 ,wealden ,fossil reptiles and mammals4 ,gault ,crystals1 flint-nodules1 choanites1 ,greensand echini1 cray-fish1 lignites4 ,chalk ,tertiary ,sands ,amber1 carnelians1 fossil shells4 ,clays ,,glossary of ,,gases1 ,,minerals1 ,,gems1 ,,crystals1 and ,,fossils1 named in this ,volume4 ,simple ,substances4 ,oxygen3 a gas4 ,silicon ,boron ,elements allied to the gases4 ,carbon ,alumina ,magnesia ,soluble in acids4 ,sulphur ,manganese ,iron ,metals4 ,gold 8,steel0 is ,iron which has been 8carbonized40 ,derived or ,compounded4 ,diamond ,sapphire ,ruby ,emerald ,topaz ,amethyst ,aquamarine ,these are termed 8gems0 or 8precious stones40 ,garnet ,pearl ,turquoise ,jargoon ,onyx ,sardonyx ,quartz ,rock-crystal ,tourmaline ,these are crystallizations4 ,spar ,asbestos ,jasper ,chalcedony ,agate ,carnelian ,these are concretions4 ,flint ,bloodstone ,moss-agate ,weed-agate ,mocha-stone ,jet ,amber ,clay ,these are exudations1 depositions1 or fossils4 ,chalk ,coal ,rock-salt3 a chloride of sodium4 ,kaolin3 this is from 8felspar40 ,echinus ,ammonite ,these are fossil ,alcyonite animals1 for ,troglodyte the most part ,choanite belonging to ,ventriculite extinct species ,icthyolite of 8zoophytes40 ,cray-fish ,sharks' teeth ,sand of the ,desert3 this is powdered quartz4 ,sand of the ,sea-shore3 sandstone dust1 mixed and penetrated with salt4 ,sea-weed3 a compound of vegetable carbon1 salt1 and siliceous particles4 ,,mineralogical ,,and ,,chemical ,,key to the ,,glossary4 ,,oxygen4 ,this is a pure gas1 and the most universally diffused substance in nature4 ,,silicon ,,carbon ,these elements will combine permanently with the ,,boron principal gases4 ,,alumina ,these elements1 when dissolved in certain acids1 ,,magnesia yield a colourless solution4 ,,sulphur ,,manganese ,these elements1 dissolved in acids1 yield a coloured ,,iron solution4 ,,gold ,,delessite is a chloride of iron4 ,,silica comprises only #b species3--#a4 ,quartz2 #b4 ,opal4 ,from ,quartz1 come ,rock-crystal ,cairn-gorums which are 8vitreous10 ,sand and ,chalcedony ,agate ,onyx ,carnelian which are 8concretions40 ,sard ,bloodstone ,jasper ,flints ,opal is a 8hydrate0 of ,,silica1 containing #g per cent4 of water4 ,precious1 or 8noble40 ,iridescent4 ,common 7colourless74 8,silicates40 ,of ,alumina ,feldspar4 ,kaolin4 ,emerald4 ,of do4 with ,glucina ,beryl ,garnet ,pyrope1 or 8precious garnet40 ,chrysolite4 ,of ,magnesia ,meerschaum4 ,asbest4 ,of do4 with ,fluorine ,topaz4 ,tourmaline4 ,of do4 with ,zircon ,jargoon1 or 8,hyacinth40 ,the colour of 8emerald0 is due to the oxide of chrome2 that of 8beryl0 to the oxide of iron4 ,,carbon comprises only #b species3--#a4 ,diamond2 #b4 ,graphite4 8,diamond0 is a perfect crystallization1 and is the hardest substance known4 8,graphite0 7sometimes called 8,black-lead07 is a carbonate of iron4 ,the iron1 however1 enters in very small quantities1 and is now supposed to be accidental4 8,graphite0 is a concretion1 and is never met with in the form of crystals4 8,carburets40 ,of ,hydrogen ,bitumen4 ,coal4 ,bituminized wood is ,lignite1 which1 when very compact1 is ,jet4 8,amber0 is a vegetable resin4 ,it is obtained from rivers in ,sicily1 and from mines in ,russia4 8,carbonates0 of ,lime ,limestone4 ,calc-spar4 ,chalk4 ,the 8marbles0 of ,paros and ,carrara are crystalline ,limestone3 those of ,siena are compact ,limestone4 ,,alumina comprises #b species3--#a4 ,corundum2 #b4 ,sapphire4 #a4 8,corundum0 is a very hard crystal1 the common type of all the ,sapphires4 #b4 ,oriental 8,sapphires40 ,these embrace #f kinds4 ,the blue ,sapphire4 0 red or 8,ruby40 0 green or ,emerald4 0 purple or ,amethyst4 0 golden or ,topaz4 0 sea-green or ,aquamarine4 ,these are pure ,alumina4 8,emery0 is a coarse variety of ,corundum4 8,aluminates40 ,of ,magnesia ,spinel ruby4 ,balas do4 ,a ,phosphate of ,alumina and ,magnesia ,turquoise4 ,the 8,spinel0 ruby is scarlet2 the 8,balas10 of a faint pink4 ,the 8,oriental0 ruby alone has the 8pigeon's blood0 hue4 ,localities of sundry 8,fossils40 7,name of ,fossil47 7,proper locality47 ,galerites ,albogalerus ,found in the ,upper ,chalk1 and1 ,echini ,ananchytes ,ovatus occasionally1 in the ,greensand4 ,cor ,anguinum ,ammonite ,the ,lias4 ,alcyonite ,troglodyte ,the ,chalk4 ,choanite ,ventriculite ,ichthyolite ,the ,old ,red ,sandstone4 ,cray-fish ,the ,gault4 ,shark's teeth ,the ,tertiary ,strata4 ,illustration3 ,plate ,i4 ,fig4 #a4 ,fig4 #b4 ,illustration3 ,plate ,,ii4 ,fig4 #a4 ,fig4 #b4 ,illustration3 ,plate ,,iii4 ,fig4 #a4 ,fig4 #b4 ,illustration3 ,plate ,,iv4 ,fig4 #a4 ,fig4 #b4 ,illustration3 ,plate ,v4 ,fig4 #a4 ,fig4 #b4 ,illustration3 ,plate ,,vi4 ,fig4 #a4 ,fig4 #b4 ,illustration3 ,plate ,,vii4 ,fig4 #a4 ,fig4 #b4 ,,general ,,index4 7,alphabetically arranged47 ,acaleph1 #afg ,actinia 7passim74 ,agate 7passim74 ,alcyonite 7passim74 ,alumina1 #f ,amber1 #ae ,amethyst1 #h ,ammonite1 #ai ,aquamarine1 #cc ,asbestos1 #aba ,balas 7ruby71 #ahd ,beryl1 #h ,bitumen1 #ahd ,bloodstone1 #dc ,boron1 #ahc ,bort1 #bd ,cairngorum1 #cf ,calc-spar1 #ahd ,carbon1 #aab ,chalcedony 7passim74 ,chalk 7passim74 ,choanite 7passim74 ,chrysolite1 #h ,clay1 #i ,coal1 #aj ,coal-tar1 #bd ,cockle1 #c ,corundum1 #bd ,cray-fish1 #ba ,crystal1 #cc ,delessite1 #hg1 #ahc ,diamond1 #aab ,echinus1 #ai ,emerald1 #h ,emery1 #bd ,felspar1 #i ,flint 7passim74 ,fluorine1 #ahc ,fossils 7passim74 ,garnet1 #ahc ,gault1 #ai ,gems 7passim74 ,glucina1 #ahc ,gold1 #aeg ,granite1 #e ,graphite1 #ahd ,greensand 7passim74 ,hyacinth1 #h ,ice1 #aaj ,icthyolite1 #abg ,iron1 #aa ,jargoon1 #h ,jasper 7passim74 ,jet1 #ae ,kaolin1 #h ,lava1 #aha ,lias1 #aha ,lignite1 #ahd ,limestone 7passim74 ,magnesia1 #ahc ,manganese1 #ahc ,meerschaum1 #ahc ,mocha-stone1 #ch ,molluskite1 #ie ,moss-agate 7passim74 ,onyx1 #h ,oolite1 #aha ,opal1 #h ,oxygen 7passim74 ,pearl1 #h ,pebble 7passim74 ,pecten ,jacoba1 #aga ,pholas ,dactylus1 #ie ,pumice1 #aha ,pyrope1 #ahc ,quartz 7passim74 ,razor-shell1 #c ,rhizostoma1 #afg ,rock-crystal 7passim74 ,rock-milk1 #agd ,rock-salt1 #aee ,rotten-stone1 #bf ,ruby1 #h ,salt1 #aee ,sand 7passim74 ,sapphire1 #h ,sardonyx1 #h ,saurians1 #ad ,seaweed 7passim74 ,sharks' tooth1 #ba ,silicon1 #aeb ,spar 7passim74 ,spinel 7ruby71 #ahd ,steel1 #abi ,sulphur1 #ahc ,terebratula1 #aga ,tertiary 7strata71 #aha ,topaz1 #h ,tourmaline1 #abd ,troglodyte1 #afi ,turquoise1 #h ,ventriculite1 #afg ,wealden1 #i ,weed-agate1 #hg ,whelk1 #age ,zircon1 #ahc ,zoophyte 7passim74 ,woodfall and ,kinder1 ,printers1 ,angel ,court1 ,skinner ,street1 ,london4 ,,popular ,,natural ,,history4 ,messrs4 ,routledge1 ,warne1 and ,routledge ,have much pleasure in announcing that they have purchased from ,mr4 ,,lovell ,,reeve his series of works on ,,popular ,,natural ,,history1 ,and in order to make them more generally known1 they have published them1 bound in cloth1 at per volume1 ,,seven ,,shillings ,,and ,,sixpence1 ,,coloured4 ,,contents ,,of ,,the ,,series4 #a4 ,,british ,,birds' ,,eggs4 ,by ,r4 ,,laishley4 ,twenty ,plates4 #b4 ,,history ,,of ,,british ,,crustacea4 ,by ,,adam ,,white1 ,f4,l4,s4 ,twenty ,plates4 #c4 ,,popular ,,greenhouse ,,botany4 ,by ,,agnes ,,catlow4 ,twenty ,plates4 #d4 ,,popular ,,field ,,botany4 ,by ,,agnes ,,catlow4 ,twenty ,plates4 #e4 ,,popular ,,geography ,,of ,,plants4 ,edited by ,dr4 ,,daubeny4 ,twenty ,plates4 #f4 ,,history ,,of ,,british ,,mosses4 ,by ,r4 ,m4 ,,stark4 ,twenty ,plates4 #g4 ,,history ,,of ,,palms4 ,by ,dr4 ,b4 ,,seemann1 ,f4,l4,s4 ,twenty ,plates4 #h4 ,,history ,,of ,,british ,,seaweeds4 ,by ,dr4 ,,landsborough4 ,twenty ,plates4 #i4 ,,popular ,,british ,,conchology4 ,by ,g4 ,b4 ,,sowerby1 ,f4,l4,s4 ,twenty plates4 #aj4 ,,popular ,,british ,,ornithology4 ,by ,p4 ,h4 ,,gosse4 ,twenty ,plates4 #aa4 ,,history ,,of ,,the ,,mammalia4 ,by ,,adam ,,white1 ,f4,l4,s4 ,sixteen ,plates4 #ab4 ,,popular ,,mineralogy4 ,by ,,henry ,,sowerby4 ,twenty ,plates4 #ac4 ,,history ,,of ,,the ,,aquarium4 ,by ,g4 ,b4 ,,sowerby1 ,f4,l4,s4 ,twenty ,plates4 #ad4 ,,history ,,of ,,mollusca4 ,by ,,mary ,,roberts4 ,eighteen ,plates4 #ae4 ,,popular ,,garden ,,botany4 ,by ,,agnes ,,catlow4 ,twenty ,plates4 #af4 ,,popular ,,economic ,,botany4 ,by ,t4 ,c4 ,,archer4 ,twenty ,plates4 #ag4 ,,history ,,of ,,british ,,ferns4 ,by ,t4 ,,moore1 ,f4,l4,s4 ,twenty-two ,plates4 #ah4 ,,history ,,of ,,british ,,lichens4 ,by ,w4 ,l4 ,,lindsay1 ,m4,d4 ,twenty-two ,plates4 #ai4 ,,popular ,,physical ,,geology4 ,by ,j4 ,b4 ,,jukes1 ,f4,r4,s4 ,twenty ,plates4 #bj4 ,,history ,,of ,,zoophytes4 ,by ,dr4 ,,landsborough4 ,twenty ,plates4 #ba4 ,,popular ,,british ,,entomology4 ,by ,,maria ,e4 ,,catlow4 ,sixteen ,plates4 #bb4 ,,popular ,,history ,,of ,,birds4 ,by ,,adam ,,white1 ,f4,l4,s4 ,twenty ,plates4 #bc4 ,,popular ,,scripture ,,zoology4 ,by ,,maria ,e4 ,,catlow4 ,sixteen ,plates4 #bd4 ,,the ,,woodlands4 ,by ,,mary ,,roberts4 ,twenty ,plates4 8,a popular series of scientific treatises1 which1 from the simplicity of their style1 and the artistic excellence and correctness of their numerous illustrations1 has acquired a celebrity beyond that of any other series of modern cheap works40--,standard4 ,,london3 ,,routledge1 ,,warne1 ,,and ,,routledge1 ,,farringdon ,,street4