,transcriber ,note ,text emphasis is denoted as ,italics4 ,whole and fractional parts of number as #abcd-ef_/ghi4 ,,the ,,moon ,,by ,,oliver ,c4 ,,farrington ,,curator ,,of ,,geology ,illustration ,,geology ,,leaflet #f ,,field ,,museum ,,of ,,natural ,,history ,,chicago #aibe ,,list ,,of ,,geological ,,leaflets ,,issued ,,to ,,date ,no4 #a4 ,model of an ,arizona ,gold ,mine 4#aj ,no4 #b4 ,models of ,blast ,furnaces for ,smelting ,iron 4#aj ,no4 #c4 ,amber--,its ,physical ,properties and ,geological ,occurrence 4#aj ,no4 #d4 ,meteorites 4#aj ,no4 #e4 ,soils 4#aj ,no4 #f4 ,the ,moon 4#aj ,d4 ,c4 ,,da ,,vies1 ,,director ,,field ,,museum ,,of ,,natural ,,history ,,chicago4 ,u4,s4,a4 ,illustration3 ,,leaflet #f4 ,,plate ,i4 ,,photograph ,,of ,,model ,,in ,,relief ,,of ,,the ,,visible ,,hemisphere ,,of ,,the ,,moon4 ,,hall #ce4 ,the model is #ai feet in diameter4 ,,field ,,museum ,,of ,,natural ,,history ,,department ,,of ,,geology ,,chicago1 #aibe ---------------------------------------- -------------------- ,,leaflet ,,number #f ---------------------------------------- -------------------- ,table of ,contents ,the ,moon #a ,general ,observations4 #g ,description of ,individual ,features4 #g ,sources of ,additional ,information ,about the ,moon4 #ac ,,the ,,moon ,except for occasional comets and meteors1 the ,moon is the celestial body nearest the ,earth4 ,its mean distance from the ,earth is #bcg1fdj miles1 but as it moves in an elliptical orbit1 it has at one point a remoteness of #bec1bfc miles and opposite to this one of #bba1dcf miles4 ,the diameter of the ,moon is about one-fourth that of the ,earth1 or #b1afj miles1 and its volume is #a_/di that of the ,earth4 ,the mass of the ,moon 7volume multiplied by density7 is #a_/ha and the density that of the ,earth4 ,the period of the ,moon's revolution about the ,earth is #bg days1 #g hours1 #dc minutes and #aa seconds4 ,as its period of rotation on its axis is the same1 only one side of the ,moon is ever seen from the ,earth4 ,since1 however1 the ,moon's axis is inclined about #hc to the plane of its orbit1 we sometimes see a little distance beyond each of its poles1 and1 since the rate of motion of the ,moon in its orbit varies slightly1 we sometimes see a little beyond the eastern and western edges of the hemisphere4 ,the total result of these librations1 as they are called1 is to make four-sevenths of the ,moon's surface visible to us4 ,of the remaining three-sevenths1 nothing is known4 ,so far as is known1 the ,moon is not flattened at the poles4 ,owing to its slow rotation on its axis1 the ,moon's day has a length of #bi of our days4 ,each portion of its surface is therefore exposed to or shielded from the light of the ,sun for a fortnight continuously4 ,the ,moon has no atmosphere4 ,hence1 it can have no diffused light1 and nothing can be seen on it except where the ,sun's rays shine directly4 ,if a man stepped into the shadow of a lunar crag1 says ,todd1 he would instantly become invisible4 ,for a similar reason1 no sound1 however loud1 can be heard on the ,moon4 ,the rolling of a rock down the wall of a lunar crater1 will be known only by the tremor it produces4 ,moreover1 changes of temperature on the ,moon are rapid and violent4 ,where the ,sun's rays strike1 a temperature about that of boiling water is believed to be reached1 while in unilluminated portions it is thought to go as low as #ajj below zero4 ,the force of gravity upon the surface of the ,moon is only of that on the ,earth4 ,therefore1 a man weighing #aej pounds on the ,earth1 would weigh only #be pounds on the ,moon1 and the same muscular energy by which he could jump #f feet on the ,earth would carry him a distance of #cf feet on the ,moon4 ,on the ,earth a body falls #af feet in one second2 on the ,moon only #b4f feet in the same time4 ,the surface of the ,moon is made up of mountains1 valleys and plains1 resembling in general appearance those of the ,earth4 ,as a whole1 however1 the surface of the ,moon is much more uneven than that of the ,earth4 ,some of the mountains of the ,moon have a height of over #bj1jjj feet4 ,as there is no sea-level to measure from1 this figure expresses height above the surrounding surface1 it being determined by the length of the shadows cast by the mountains4 ,in order to represent in a vivid and accurate manner the character and appearance of the ,moon's surface1 the construction of a large model of the ,moon was undertaken a number of years ago by ,th4 ,dickert1 ,curator of the ,natural ,history ,museum of ,bonn1 ,germany and ,dr4 ,j4 ,f4 ,julius ,schmidt1 ,director of the ,observatory of ,athens1 ,greece and an eminent selenographer4 ,the model was presented to the ,museum by the late ,lewis ,reese of ,chicago1 and is installed at the west end of ,hall #ce of the ,museum4 ,the model is #ai4b feet in diameter1 and is by far the largest and most elaborate representation of the ,moon's surface ever made4 ,its horizontal scale is #a3fjj1jjj1 one inch on the model equaling #i-dg_/ajj miles on the surface of the ,moon1 and its vertical scale is #a3bjj1jjj1 one inch equaling #c-ae_/ajj miles on the ,moon4 ,some characteristic features of the ,moon's surface which are especially well illustrated on the model are the following3 #a4 ,,gray ,,plains or ,,seas4 ,these are the darker portions of the ,moon's surface as it is seen with the naked eye4 ,they were thought by earlier observers to be seas and were so named4 ,we now know1 however1 that there is no water on the ,moon's surface and that the so-called seas are really low-land plains1 some of them of vast extent4 ,the ,oceanus ,procellarum1 for instance1 covers an area of #ij1jjj square miles4 ,as seen from the ,earth1 the plains show a gray-green color1 often of varying intensity and sometimes a little bluish in portions4 ,the brightest green color is shown by the area known as ,mare ,serenitatis4 ,though appearing perfectly level1 a close study shows that these plains have undulating surfaces4 ,they occupy about one-third of the visible surface of the ,moon4 #b4 ,,mountains and ,,highlands4 ,these constitute the bright portions of the ,moon's surface as it is seen with the naked eye4 ,although these elevated areas are conveniently called mountains1 ,shaler has drawn attention to the fact that they are unlike those on the ,earth since they lack features due to erosion and there is absence of order in their association4 ,the average declivity of their slopes is also much greater than that of the mountains on the ,earth4 ,it has been estimated that the average angle of the lunar surface to its horizon is #eb1 while on the ,earth it does not amount to more than one-tenth of that figure4 ,this difference is probably due to the lack of water on the ,moon1 the work of which on the ,earth tends continually to reduce slopes to a level4 ,using the term mountains for convenience1 however1 those on the ,moon may be divided into the following classes3 a4 ,,mountain ,,chains4 ,these may have a length of #hj to #ajj miles and heights of from #e1jjj to #ag1jjj feet4 ,as in the case with the mountains of the ,earth1 they are usually steeper on one side than on the other4 ,the range called the ,appenines1 seen near the north pole of the ,moon1 is a good illustration of such mountain chains4 ,other ranges are the so-called ,alps and ,caucasus4 ,these names were applied by ,hevelius1 an astronomer of ,danzig1 who made the first map of the ,moon in #afdg4 ,he gave to the features of the ,moon's surface names of localities similar to those on the ,earth which they most resembled4 ,his system was largely abandoned by later astronomers1 however1 the later method being to name the different features of the ,moon after celebrated astronomers and philosophers4 b4 ,,highlands ,,surrounded ,,by ,,mountains4 ,these are partly with and partly without well-determined directions4 c4 ,,isolated ,,mountains4 ,these usually occur on the gray plains4 ,they vary from #d1jjj to #g1jjj feet in height4 d4 ,,vein ,,mountains4 ,these occur only on the gray plains4 ,they are long1 narrow1 contorted ridges1 usually from #gjj to #a1jjj feet in height4 e4 ,,circular ,,mountains4 ,these are the most characteristic and peculiar features of the ,moon's surface4 ,they vary in size from the so-called ,walled ,plains1 #aej to #ae miles in diameter1 to crater mountains whose diameters range from #ae miles down to a few hundred feet4 ,thirty-three thousand of these crater mountains have been counted by one astronomer1 the number increasing as the size diminishes4 ,the form of these craters is that of pits1 which generally have ring-like walls about them4 ,these wails slope very steeply to a central cavity and more gently toward the surrounding country4 ,in all these pits1 as pointed out by ,shaler1 except those of the smallest size1 and possibly in these1 also1 there is1 within the ring wall and at a considerable though variable depth below its summit1 a nearly flat floor1 which often has a central pit of small size or1 in its place1 a steep cone4 ,when this floor is more than #bj miles in diameter1 and in increasing numbers as it is wider1 there are generally other pits and cones irregularly scattered upon it4 ,thus1 within the ring called ,plato1 which is about #fj miles in diameter1 there are some scores of these lesser pits4 ,on the interior of the ring walls of the pits over #aj miles in diameter1 there are usually more or less distinct terraces1 which suggest that the material now forming the solid floors they inclose was once fluid and stood at greater heights in the pit than that at which it became permanently frozen4 ,it is1 indeed1 tolerably certain that the last movement of this material of the floors was one of interrupted subsidence from an originally greater elevation on the outside of the ring wall4 ,the ring wall is commonly of irregular height1 with many peaks4 ,in some places there may be seen tongues or protrusions of the substance which forms the ring1 as if it had flowed a short distance and then had cooled with steep slopes4 ,it may also be noted3 7a7 that the pits or craters in many instances intersect each other1 showing that they were not all formed at the same time1 but in succession2 7b7 that the larger of them are not found on the plains 7seas7 but on the upland and apparently the older parts of the surface2 and 7c7 that the evidence from the intersections clearly indicates that the larger of these structures are prevailingly the older and that in general the smallest were the latest formed4 ,in other words1 says ,shaler1 whatever was the nature of the action involved in the production of the craters1 its energy diminished with time1 until in the end it could no longer break the crust4 ,these features indicate that the surface of the ,moon has been subject to forces similar to those which produce volcanoes on the ,earth1 and it is therefore customary to refer to the crater-like mountains of the ,moon as volcanoes4 ,as the parallel cannot be drawn too closely1 however1 ,shaler has urged that the term vulcanoids1 meaning volcano-like1 be applied to these mountains4 #c4 ,,rills or ,,clefts4 ,these are small1 deep1 ditch-like furrows to be found over various parts of the ,moon's surface4 ,their course seems quite independent of the surface topography1 for they traverse mountains and plains with equal facility4 ,they are without doubt the latest formation on the ,moon and some of them may have had their origin in modern times4 #d4 ,,bright ,,streaks4 ,these radiate prominently from many of the great craters of the ,moon4 ,they are streaks of narrow width but sometimes nearly a hundred miles in length4 ,they are perhaps the most puzzling of all the ,moon's features4 ,they have been supposed by some observers to represent lava flows whose surface reflected light more brilliantly than other portions of the ,moon4 ,it is more generally believed1 however1 that the streaks do not represent any independent elevations1 since they run over the highest mountains as well as through the deepest craters without variation4 ,,general ,,observations4 ,the condition of the ,moon's surface as a whole indicates that it has been a theater of extraordinary volcanic activity4 ,in size and number its vulcanoids far exceed the volcanoes of the ,earth4 ,the largest terrestrial crater known is that of ,kilauea in the ,hawaiian ,islands which is #b miles in diameter4 ,several craters of the ,moon1 however1 exceed #ej miles in diameter and one measures #aad miles4 ,while the absolute heights of the mountains of the ,moon do not greatly exceed those of the ,earth1 proportionally they are much higher1 since the ,moon's diameter is only one-fourth that of the ,earth4 ,the vulcanoids of the ,moon differ in other respects from the volcanoes of our globe4 ,on the ,earth they are usually openings on the summits or sides of mountains--on the ,moon1 depressions below the adjacent surface even when it is a plain or valley2 on the ,earth the mass of the cone usually far exceeds the capacity of the crater--on the ,moon they are much nearer equality2 on the ,earth they are commonly the sources of long lava streams--on the ,moon1 traces of such outpourings are rare4 7,webb47 ,,description ,,of ,,individual ,,features4 7,abridged from ,nasmyth and ,carpenter47 ,the numbers refer to those on the accompanying chart4 ,,copernicus4 #adg4 ,this may deservedly be considered one of the grandest and most instructive of lunar craters4 ,though its diameter 7#df miles7 is exceeded by that of other craters1 its situation near the center of the lunar disc renders it so conspicuous as to make it a favorite object for observation4 ,its vast rampart rises to upwards of #ab1jjj feet above the level of the plateau1 nearly in the center of which stands a magnificent group of cones attaining the height of upwards of #bdjj feet4 ,the rampart is divided by concentric segmented terraced ridges1 which present every appearance of being enormous landslips1 resulting from the crushing of their overloaded summits which have slid down in vast segments and scattered their debris on the plateau4 ,corresponding vacancies in the rampart may be observed from whence these prodigious masses have broken away4 ,the same may be noticed1 to a somewhat modified degree1 around the exterior of the rampart4 ,for upwards of #gj miles around ,copernicus myriads of comparatively minute but perfectly formed craters can be seen4 ,the district on the southeast side is especially rich in them4 ,many somewhat radial ridges or spurs may be observed leading away from the exterior banks of the great rampart4 ,they appear to be due to the freer egress which the extruded matter found near the focus of disruption4 ,,triesnecker4 #aej4 ,a fine example of a normal lunar volcanic crater having all the usual characteristic features in great perfection4 ,its diameter is about #bj miles and it possesses a good example of the central cone and also of interior terracing4 ,the most notable feature1 however1 is the remarkable display of cracks or chasms which may be seen to the west side of it4 ,several of these cracks obviously diverge from near the west external bank of the great crater and they sub-divide or branch out as they extend from the apparent point of divergence1 while they are crossed or intersected by others4 ,these cracks or chasms are nearly one mile wide at their widest part and after extending for fully #ajj miles taper away till they become invisible4 ,,theophilus4 #ig4 ,,cyrillus4 #if4 ,,catharina4 #ie4 ,these three magnificent craters form a conspicuous group4 ,their diameters and depths are as follows3 ,theophilus1 diameter1 #fd miles2 depth of interior plateau from summit of crater wall1 #af1jjj feet2 central cone1 #ebjj feet high2 ,cyrillus1 diameter1 #fj miles2 depth of interior plateau from summit of crater wall1 #ae1jjj feet2 central cone1 #ehjj feet high2 ,catharina1 diameter1 #fe miles2 depth of interior plateau from summit of crater wall1 #ac1jjj feet2 center of plateau occupied by a confused group of minor craters and debris4 ,each of these craters is full of interesting details presenting in every variety the characteristic features of the lunar volcanoes and giving unmistakable evidence of the tremendous energy which at some remote period piled up such gigantic formations4 ,the intrusion of ,theophilus within ,cyrillus shows that it is of more recent formation than the latter4 ,the flanks of ,theophilus1 especially on the west side1 are studded with apparently minute craters4 ,these would be considered of great size but for the enormous crater so near4 ,,ptolemy4 #aaa4 ,,alphons4 #aaj4 ,,arzachael4 #hd4 ,the portion of the moon's surface which includes these features1 being near the center of the lunar disc1 is exceptionally well placed for observation4 ,within this area may be seen every variety of volcanic craters and a number of other interesting forms4 ,ptolemy belongs to the class of walled plains1 its ramparts enclosing a plain #hf miles in diameter4 ,alphons and ,arzachael are respectively #fj and #ee miles in diameter4 ,they have all the distinctive features of lunar craters1 viz3--central cones1 lofty1 ragged ramparts1 manifestations of landslip formations in the great segmental terraces within their ramparts and minor craters interpolated within their plateaus4 ,a notable object near ,alphons is an enormous straight cliff traversing the diameter of a low1 ridged1 circular formation4 ,this great cliff is #fj miles long and from #ajjj to #bjjj feet high4 ,it is a well known object to lunar observers and has been termed ,the ,railway on account of its straightness4 ,the existence of this remarkable cliff appears to be due either to an upheaval or a down-sinking of a portion of the surface of the circular area across whose diameter it extends4 ,,tycho4 #hj4 ,this magnificent crater is #ed miles in diameter and upwards of #af1jjj feet deep from the highest ridge of the rampart to the surface of the plateau4 ,it is one of the most conspicuous of lunar craters1 not so much on account of its dimensions as from its occupying the great focus of disruption from whence diverge those remarkable bright streaks many of which may be traced over #ajjj miles of the moon's surface4 ,the interior of the crater presents striking examples of the concentric1 terrace-like formations that are regarded as formed by landslips4 ,,wargentin4 #bf4 ,,schickard4 #bh4 ,wargentin is an object quite unique of its kind--a crater about #eb miles across1 that to all appearance has been filled to the brim with lava that has been left to consolidate4 ,there are evidences of the remains of a rampart1 especially on the southwest portion of the rim4 ,the general aspect of ,wargentin has been compared to that of a thin cheese4 ,the terraced and rutted exterior of the rampart has all the details of a true crater4 ,the surface of the high plateau is marked by a few ridges branching from a point nearly in the center4 ,schickard is one of the finest examples of a walled plain4 ,it is #aec miles in diameter4 ,within its rampart are #af smaller craters and without1 numberless others4 ,the following are the names of topographic features of the ,moon which can be located by the corresponding numbers on the accompanying chart4 #a4 ,newton4 #ei4 ,pontanus4 #b4 ,short4 #fj4 ,poisson4 #c4 ,simpelius4 #fa4 ,aliacensis4 #d4 ,manzinus4 #fb4 ,werner4 #e4 ,moretus4 #fc4 ,pitatus4 #f4 ,gruemberger4 #fd4 ,hesiodus4 #g4 ,casatus4 #fe4 ,mercator4 #h4 ,klaproth4 #ff4 ,vitello4 #i4 ,wilson4 #fg4 ,fourier4 #aj4 ,kircher4 #fh4 ,lagrange4 #aa4 ,bettinus4 #fi4 ,vieta4 #ab4 ,blancanus4 #gj4 ,doppelmayer4 #ac4 ,clavius4 #ga4 ,campanus4 #ad4 ,scheiner4 #gb4 ,kies4 #ae4 ,zuchius4 #gc4 ,purbach4 #af4 ,segner4 #gd4 ,la ,caille4 #ag4 ,bacon4 #ge4 ,playfair4 #ah4 ,nearchus4 #gf4 ,azophi4 #ai4 ,vlacq4 #gg4 ,sacrobosco4 #bj4 ,hommel4 #gh4 ,fracastorius4 #ba4 ,licetus4 #gi4 ,santbech4 #bb4 ,maginus4 #hj4 ,petavius4 #bc4 ,longomontanus4 #ha4 ,wilhelm ,humboldt4 #bd4 ,schiller4 #hb4 ,polybius4 #be4 ,phocylides4 #hc4 ,geber4 #bf4 ,wargentin4 #hd4 ,arzachael4 #bg4 ,inghirami4 #he4 ,thebit4 #bh4 ,schickard4 #hf4 ,bullialdus4 #bi4 ,wilhelm ,i4 #hg4 ,hippalus4 #cj4 ,tycho4 #hh4 ,cavendish4 #ca4 ,saussure4 #hi4 ,mersenius4 #cb4 ,stoefler4 #ij4 ,gassendi4 #cc4 ,maurolycus4 #ia4 ,lubiniezky4 #cd4 ,barocius4 #ib4 ,alpetragius4 #ce4 ,fabricius4 #ic4 ,airy4 #cf4 ,metius4 #id4 ,almanon4 #cg4 ,fernelius4 #ie4 ,catharina4 #ch4 ,heinsius4 #if4 ,cyrillus4 #ci4 ,hainzel4 #ig4 ,theophilus4 #dj4 ,bouvard4 #ih4 ,colombo4 #da4 ,piazzi4 #ii4 ,vendelinus4 #db4 ,ramsden4 #ajj4 ,langreen4 #dc4 ,capuanus4 #aja4 ,goclenius4 #dd4 ,cichus4 #ajb4 ,guttemberg4 #de4 ,wurzelbauer4 #ajc4 ,isidorus4 #df4 ,gauricus4 #ajd4 ,capella4 #dg4 ,hell4 #aje4 ,kant4 #dh4 ,walter4 #ajf4 ,descartes4 #di4 ,nonius4 #ajg4 ,abulfeda4 #ej4 ,riccius4 #ajh4 ,parrot4 #ea4 ,rheita4 #aji4 ,albategnius4 #eb4 ,furnerius4 #aaj4 ,alphons4 #ec4 ,stevinus4 #aaa4 ,ptolemy4 #ed4 ,hase4 #aab4 ,herschel4 #ee4 ,snell4 #aac4 ,davy4 #ef4 ,borda4 #aad4 ,guerike4 #eg4 ,neander4 #aaf4 ,bonpland4 #eh4 ,piccolomini4 #aag4 ,lalande4 #agd4 ,seleucus4 #aah4 ,reaumur4 #age4 ,herodotus4 #abj4 ,letronne4 #agf4 ,aristarchus4 #aba4 ,billy4 #agg4 ,la ,hire4 #abb4 ,fontana4 #agh4 ,pytheas4 #abc4 ,hansteen4 #agi4 ,bessel4 #abd4 ,damoiseau4 #ahj4 ,vitruvius4 #abe4 ,grimaldi4 #aha4 ,maraldi4 #abf4 ,flamsteed4 #ahb4 ,macrobius4 #abg4 ,landsberg4 #ahc4 ,cleomides4 #abh4 ,moesting4 #ahd4 ,roemer4 #abi4 ,deambrel4 #ahe4 ,littrow4 #acj4 ,taylor4 #ahf4 ,posidonius4 #aca4 ,messier4 #ahg4 ,geminus4 #acb4 ,maskelyne4 #ahh4 ,linnaeus4 #acc4 ,sabine4 #ahi4 ,autolycus4 #acd4 ,ritter4 #aij4 ,aristillus4 #ace4 ,godin4 #aia4 ,archimedes4 #acf4 ,soemmering4 #aib4 ,timocharis4 #acg4 ,schroeter4 #aic4 ,lambert4 #ach4 ,gambart4 #aid4 ,diophantus4 #aci4 ,reinhold4 #aie4 ,delisle4 #adj4 ,encke4 #aif4 ,briggs4 #ada4 ,hevelius4 #aig4 ,lichtenberg4 #adb4 ,riccioli4 #aii4 ,calippus4 #adc4 ,lohrman4 #bjj4 ,cassini4 #add4 ,cavalerius4 #bja4 ,gauss4 #ade4 ,reiner4 #bjb4 ,messala4 #adf4 ,kepler4 #bjc4 ,struve4 #adg4 ,copernicus4 #bjd4 ,mason4 #adh4 ,stadius4 #bje4 ,plana4 #adi4 ,pallas4 #bjf4 ,burg4 #aej4 ,triesnecker4 #bjg4 ,baily4 #aea4 ,agrippa4 #bjh4 ,eudoxus4 #aeb4 ,arago4 #bji4 ,aristotle4 #aec4 ,taruntius4 #baj4 ,plato4 #aed4 ,apollonius4 #baa4 ,pico4 #aee4 ,schubert4 #bab4 ,helicon4 #aef4 ,firmicus4 #bac4 ,maupertuis4 #aeg4 ,silberschlag4 #bad4 ,condamine4 #aeh4 ,hyginus4 #bae4 ,bianchini4 #aei4 ,ukert4 #baf4 ,sharp4 #afj4 ,boscovich4 #bag4 ,mairan4 #afa4 ,ross4 #bah4 ,gerard4 #afb4 ,proclus4 #bai4 ,repsold4 #afc4 ,picard4 #bbj4 ,pythagoras4 #afd4 ,condorcet4 #bba4 ,fontenelle4 #afe4 ,pliny or ,menelaus4 #bbb4 ,timaeus4 #afg4 ,manilius4 #bbc4 ,epigenes4 #afh4 ,erastothenes4 #bbd4 ,gartner4 #afi4 ,gay ,lussac4 #bbe4 ,thales4 #agj4 ,tobias ,mayer4 #bbf4 ,strabo4 #aga4 ,marius4 #bbg4 ,endymion4 #agb4 ,olbers4 #bbh4 ,atlas4 #agc4 ,vasco de ,gama4 #bbi4 ,hercules4 ,,oliver ,c4 ,,farrington4 ,,sources ,,of ,,additional ,,information ,,about ,,the ,,moon ,a number of textbooks and popular works on astronomy deal more or less fully with the ,moon4 ,among them the following may be mentioned4 ,,moulton1 ,,forest ,,ray--,introduction to ,astronomy4 ,macmillan ,co41 ,new ,york4 #aiaf4 #egg pp4 ,,young1 ,,charles ,a4--,a ,textbook of ,general ,astronomy4 ,ginn ,co41 ,boston4 #ahih4 #fcj pp4 ,,todd1 ,,david ,p4--,stars and ,telescopes4 ,little1 ,brown ,co41 ,boston4 #ahii4 #dai pp4 ,the following are some works which treat exclusively of the ,moon4 ,,nasmyth1 ,,james and ,,carpenter1 ,,james--,the ,moon4 ,john ,murray1 ,london4 #ahhe4 #bac pp4 #be ,woodburytype plates and several text figures4 ,,pickering1 ,,william ,h4--,the ,moon4 ,doubleday1 ,page ,co41 ,new ,york4 #aijc4 ,quarto4 #ajc pp4 and many full-sized plates4 ,,proctor1 ,,richard ,a4--,the ,moon4 ,longmans1 ,green ,co41 ,london4 #ahih4 #cad pp4 ,,gilbert1 ,,grove ,k4--,the ,moon's ,face4 ,bulletin of the ,philosophical ,society of ,washington1 #ahib-ic4 ,vol4 #ab1 pp4 #bda-bib4 ,,shaler1 ,,nathaniel ,s4--,a ,comparison of the ,features of the ,earth and the ,moon4 ,smithsonian ,contributions to ,knowledge4 #aijg4 ,vol4 #cd1 pp4 #a-gi4 #be plates4 ,illustration3 ,,leaflet #f4 ,,plate ,,ii4 ,,chart ,,of ,,the ,,moon',s ,,surface4 ,,after ,,nasmyth4 ,the figures refer to the names given on pp4 #aa and #ab and the use of the chart with the model will enable the reader to name the different features of the moon4 ,,printed ,,by ,,field ,,museum ,,press 99 99 99 99 99 ,transcriber ,note ,the list of topographic features 7pp4 #aa-ab7 have some numbers missing 7#aae1 #aaf7 and a comparison with ,nasmyth and ,carpenter's ,the ,moon was missing those numbers but several other numbers were repeated4 ,the repeated numbers appear to represent craters too close to split out4