,,william ,,gilb]t1 ,,& ,,t]re/rial ,,magnetism ,,9 ,,! ,,"t ,,( ,,que5 ,,elizabe?3 ,a ,,disc\rse ,,by ,,silvanus ,p4 ,,?ompson1 ,f4,r4,s4 ,,william ,,gilb]t ,,& ,,t]re/rial ,,magnetism ,,9 ,,! ,,"t ,,( ,,que5 ,,elizabe?4 ,william ,gilb]t1 ! fa!r ( electrical sci5ce1 0 born 9 ,col*e/] 9 #aedj4 ,educat$ at ,/4 ,john's ,college1 ,cambridge1 :]e he took 8 degree z ,doctor ( ,m$ic9e 9 #aefi1 he settl$1 aft] f\r ye>s ( =eign travel1 9 ,london 9 #aegc1 & 0 admitt$ to ! ,royal ,college ( ,physicians1 ( :i* he became ,c5sor1 ,treasur]1 &1 9 #aeii1 ,presid5t4 ,he 0 9 ,febru>y1 #afja1 appo9t$ p]sonal ,physician to ! ,que51 :om he att5d$ 9 h] la/ illness4 ,he came ( a well-kn[n ,ea/ ,anglian family1 & held ext5sive l&$ e/ates 9 ,essex & ,suffolk4 ,he surviv$ ! ,que5 only eight mon?s1 dy+ ,novemb] #cj?1 #afjc4 ,gilb]t's monum5tal "w1 ! ,de ,magnete1 publi%$ 9 #afjj1 m>ks an era 9 magnetic sci5ce4 ,= "s f\r hundr$ ye>s ! employm5t ( ! magnetic ne$le 9 navigation _h be5 kn[n bo? 9 ,nor!rn & ,s\!rn ,europe4 ,:ile x is possible t ! primitive use ( ! load/one may be ascrib$ to ! ,baltic1 x is c]ta9 t ! employm5t ( a pivott$ ne$le1 & ! addition ( a rose ( ! w9ds z a compass c>d bo? orig9at$ 9 ! ,m$it]ranean4 ,! pivott$ ne$le is describ$ 9 ! ,epi/le ( ,pet] ,p]egr9us1 writt5 9 #abfi2 :ile ! e>lie/ kn[n compass-c>d m>k$ ) ! initials ( ! names ( ! w9ds is t ascrib$ to ,ja*obus ,giraldis1 ( #adbf1 9 ! ,biblioteca ,m>ciana 9 ,v5ice4 ,! mann] ( use 9 ,elizabe?an times ( ! load/one & ( ! compass may be ga!r$ f ,olaus ,magnus 7,hi/oria de ,g5tibus ,sept5trionalibus1 #aeee71 f ,p$ro de ,m$9a 7,arte de ,naueg>1 #aede71 ,m>t9us ,cortes 7,breve comp5dio de la sph]a1 #aeef71 ,blundevile 7,ex]cises1 #aeid71 ,norman 7,newe ,attractive1 #aeha71 ,bor\gh 7,a disc\rs ( ! ,v>iation ( ! ,cumpas1 #aeha71 ,p$ro ,nuez 7,in/rum5ta ,artis ,navig&i1 #aeib71 ,b>l[ 7,! ,navigators ,supply1 #aeig71 ,nautoni] 7,mcometrie de l',eyman1 #afjb71 & ,/ev9 7,die ,hav5v9d+1 #aeii74 ,at ! "t :5 /e]+ by ! compass 0 introduc$ into navigation1 ! compass po9t$ 9 ,middle ,europe s ne>ly truly to ! nor? t ) ! r\gh in/rum5tal appliances at h& its deviation f ! true nor? 0 seldom notic$1 or if notic$ ascrib$ to "s error 9 ! sett+ ( ! ne$le4 ,lat] ! compass-mak]s began to set _! ne$les slightly askew b5ea? ! c>d1 accord+ to ! v>iation 9 ! place ( orig94 ,norman 7#aeha7 /ates t ^? us$ 9 ! ,levant1 made 9 ,sicily1 ,g5oa1 or ,v5ice1 _h ! ne$les /raight1 :ile ^? us$ 9 ,d5m>k & ,fl&]s _h !m set at ?ree-qu>t]s ( a po9t1 or a :ole po9t1 to ! ea/w>d2 :ile ^? made 9 ,spa91 ,portugal1 ,france1 & ,engl&1 _h ! ne$les set half a po9t to ! ea/4 ,^? = ,russia 7 set at ?ree seconds ( a po9t4 ,gilb]t d5\nc$ ^! devices z t5d+ to obscure ! true facts4 ,gradually x became recogniz$1 probably aft] ! voyage ( ,columbus1 :5 ! manife/ *ange 9 ! decl9ation ( ! ne$le ne>ly caus$ mut9y ( ! sailors1 t ! direction ( ! ne$le diff]s at diff]5t places2 & accord+ly navigators began to collect data4 ,! record ( ! voyage ( ,columbus /ates t dur+ 8 second voyage 9 #adif he us$ = /e]+ ! obs]vations made on ! decl9ation dur+ 8 fir/ voyage4 ,! secret ( ,seba/ian ,cabot1 :i* he decl>$ :5 dy+ to be a div9e revelation to him1 c h be5 little else ?an ! idea ( us+ 9 navigation ! local decl9ations ( ! compass4 ,on ! o!r h&1 ,p$ro de ,m$9a flatly d5i$ ! exi/5ce ( ! decl9ation1 add+ t if ! compass did n %[ ! pole1 ! fault lay 9 ! defective con/ruction ( ! compass itself4 ,columbus _h f\nd a po9t #b-a_/b ea/ ( ,corvo1 9 ! ,azores1 :]e !re 0 no v>iation1 & o!r navigators explor$ ! agonic l9es :i* cross$ ! ,atlantic & ! ,indian ocean4 ,accord+ to ,humboldt1 ,alonzo de ,santa ,cruz 9 #aecj con/ruct$ ! fir/ g5]al v>iation *>t4 ,b along ) ?is developm5t ( practical int]e/ 9 ! subject !re grew up a crop ( wild leg5ds to acc\nt = ! irregul>ities obs]v$4 ,! reason :y ! compass ne$le po9t$ nor?1 & ! reason :y x did n po9t truly nor?1 7 alike proclaim$ to be due to ! />s1 to ! influ5ce ( spirits1 or to ! exi/5ce ( load/one m\nta9s ( unc]ta9 locality & ( fabul\s p[]4 ,! old traditions ( ! ,arabian ,nights1 dress$ 9 a new] sett+1 f\nd !mselves ju/ifi$ by ! ins]tion 9 maps ( load/one rocks1 ! position ( :i* *ang$ at ! fancy ( ! *>tograph]4 ,ptolemy _h locat$ !m 9 ! ,manioles2 ,olaus ,magnus decl>$ !m to be "u ! pole2 ,g>zias ab ,horto situat$ !m 9 ! region ( ,calcutta4 ,! map ( ,johann ,ruys*1 :i* adorn$ ! edition ( ,ptolemy1 publi%t at ,rome 9 #aejh1 %[$ f\r magnetic isl&s 9 ! ,arctic ,circle4 ,m>t9us ,cortes plac$ ! load/one m\nta9s 9 ,s>matia4 ,m]cator 9 8 great *>t depict$ two great rocks ris+ f ! sea to ! nor? ( ea/]n ,sib]ia1 "o be+ drawn on ! supposition t at ,/4 ,mi*ael ! compass po9ts due nor?1 :ile ! o!r is fur!r nor? on ! supposition t ! compass po9ts due nor? at ,corvo4 ,! map ( ,cornelius ,wytfliet1 #aeig1 %[s ! same phantom isl&s4 ,blundevile1 writ+ 9 #aeid ( ! n[ lo/ map ( ,pet] ,plancius1 m5tions t he sets d[n ! pole ( ! load/one some:at to s\?w>d ( ! isl&s t lie ea/ ( ,groynel&e4 ,meantime ano!r significant fact _h be5 discov]$ 9 #aegf by ,rob]t ,norman1 ( ,limeh\se1 compass-mak]1 namely1 ! t5d5cy ( ! magnetiz$ ne$le to dip its nor!rn end d[nw>ds4 ,notic+ ?is z a circum/ance t occasion$ him "s tr\ble 9 ! con/ruction ( 8 compasses1 he !reupon devis$ a dipp+-ne$le1 & measur$ ! dip1 :i* = ?is ,cyty ( ,london ,i f9de by exact obs]uations to be ab\t #ga degrees #ej mynutes4 ,he attribut$ bo? ! decl9ation & ! dip ( ! ne$le to ! exi/5ce ( a poynt respective1 :i* ! ne$le respect$ or indicat$1 b t[>d :i* x 0 n attract$4 ,! fir/ au?oritative treatise on ! v>iation ( ! compass 0 ! tract by ,william ,bor\gh1 comptroll] to ! ,navy1 :o 9 #aehj f\nd an ea/w>d decl9ation ( #aa #ae' at ,limeh\se4 ,bor\gh _h himself travell$ 9 nor!rn regions & _h f\nd at ,vaigats a we/]ly decl9ation ( #g degrees1 :]eas by ,norman's !ory ( ! respective po9t !re %\ld h be5 an ea/]ly decl9ation ( #di #bb'4 ,! great navigators 7 cont9ually br++ home fre% in=mation4 ,drake1 ,lyns*ot51 ,cav5di%1 ,h>iot all contribut$2 z did less] m5 su* z ,abraham ,k5dall1 sail+-ma/] to ,sir ,rob]t ,dudley 7! soi-disant ,duke ( ,nor?umb]l&71 & aft]w>d companion ( ,drake 9 8 la/ voyage4 ,tea*]s ( navigation su* z ,simon ,/ev9 ( ,bruges & ,edw>d ,wright1 lectur] to ! ,ea/ ,india ,company1 might record & tabulate3 b a ma/]-m9d 0 want+ to =ge "s l>g] & consi/5t doctr9e :i* %\ld af=d a grasp ( ! :ole subject4 ,su* an "o arose 9 ,dr4 ,william ,gilb]t4 ,nurtur$1 z we h se51 9 ! ,cambridge :i* _h s rec5tly be5 ! home ( ,l9acre & ( ,kaye--! ,kaye :o f\nd$ ,caius ,college--,gilb]t _h1 dur+ 8 subsequ5t soj\rn 9 ,italy1 conv]s$ ) all ! le>n$ m5 ( 8 "t4 ,he _h exp]im5t$ on ! magnet ) ,fra ,paolo ,s>pi3 he _h1 !re is reason to ?9k1 met ,giordano ,bruno3 he 0 ! fri5d & correspond5t ( ,giovanni ,francesco ,sagr$o4 ,be+ a man ( means & a ba*elor1 he sp5t money freely ^u books1 maps1 in/rum5ts1 m9]als1 & magnets4 ,= tw5ty ye>s he exp]im5t$ ceaselessly1 & read1 & wrote & speculat$1 & te/$ 8 speculations by new exp]im5ts4 ,= eighte5 ye>s he kept beside him ! manuscript ( 8 treatise1 :i* 9 ! ye> #afjj saw ! light "u ! title ( ,de ,magnete1 to :i* 0 add$ ! sub-title3 magneticisque corporibus1 et de magno magnete tellure1 physiologia nova4 ,t :i* ,gilb]t _h 9 fact p]ceiv$1 & :i* none be=e him _h glimps$ ev5 dimly1 0 t ! globe ( ! e>? itself act$ z a great load/one1 & t ! t5d5cy ( ! ne$le to po9t 9 a pol> direction 0 due to ! globe act+ z a :ole4 ,s he boldly put into 8 title-page ! /atem5t t 8 new philosophy 0 conc]n+ ! great magnet ! e>?3 & 9 *apt] aft] *apt] he set himself to describe ! exp]im5ts ^u :i* he f\nd$ 8 fam\s induction4 ,! phrase t]re/rial magnetism does n occur 9 any ( ! prior treatises1 because ! idea _h n pres5t$ itself4 ,gilb]t pil$ pro( ^u pro(1 sometimes mo/ cog5tly1 z :5 he con/ruct$ load/one globes1 or t]rellas to s]ve z magnetic models ( ! e>?2 sometimes ) indiff]5t logic1 z :5 he po9t$ to ! iron ore 9 ! e>? & reason$ t ! magnet t5d$ to con=m to 7i4e4 turn itself t[>d7 ! homog5ic sub/ance ( ! body f :i* x _h be5 dug4 ,! local deviations ( ! compass he s\ght to acc\nt = by ! irregul>ities ( ! e>?'s cru/1 & ma9ta9$ t ! compass t5d$ always1 at places (f ! coa/ ( a cont95t1 to be deflect$ some:at t[>d t cont95t4 ,8 syllogism 0 bas$ on ! fact t at t date all ! way up ! ,atlantic seabo>d ( ,europe1 f ,morocco to ,norway1 ! v>iation 0 ea/w>d4 ,he argu$ t ?is 0 a univ]sal law4 ,b ev5 )9 "o g5]ation1 z may be se5 9 ,pur*as 8 ,pilgrims1 9 ! n>rative ( ! voyage ( ,bylot & ,baff91 ! g5]ality ( ! law 0 que/ion$4 ,gilb]t reason$ on su* k z he _h1 & ?is did n include any notion ( ! secul> *anges 9 ! decl9ation4 ,9 8 "t1 z he tells u1 ! v>iation ( ! compass at ,london 0 #aa-a_/c degrees4 ,:at he did n "k 0 t ?is 0 a dim9i%+ quantity :i* 9 fifty-sev5 ye>s w\ld be r$uc$ to z]o1 to be succe$$ by a we/w>d decl9ation t w\ld la/ = ne>ly ?ree hundr$ ye>s4 ,= ! facts z kn[n 9 ! ?irty ye>s succe$+ ,gilb]t's dea?1 see ! rem>kable & sc>ce volume ( ,gellibr&3 ,a ,disc\rse ,ma!matical on ! ,v>iation ( ! ,magneticall ,ne$le 7#afce74 ,gilb]t's treatise is a skilful lit]>y a*ievem5t 9 :i* !re is no trace to reveal :e!r any "p 0 writt5 be=e ! re/4 ,x is divid$ sy/ematically into six books4 ,! six? book only appe>s to suff] f "s incomplet5ess4 ,x relates n s mu* to ! magnet z to ! ,cop]nican !ory ( ! univ]se1 :i* doctr9e ,gilb]t _h eag]ly esp\s$1 & :i* he 0 ! fir/ 9 ,engl& to proclaim4 ,x is kn[n f a lett] to ,b>l[1 pr9t$ 9 #afaf1 t he int5d$ to add to x c]ta9 *apt]s descriptive ( "s ( 8 in/rum5ts1 b he _h n complet$ ^! be=e 8 dea?4 ,! fir/ book treats ( hi/oric acc\nts ( ! load/one1 ( its orig9 & prop]ties1 ( iron ores 9 g5]al1 & ( ! fables & va9 op9ions :i* 9 ! h&l+ ( ,p>acelsus & ( ! s*oolm5 _h gr[n up ar\nd ! magnet4 ,! second book is on ! magnetic motions1 & prim>ily on ! attractions & repulsions betwe5 load/ones1 betwe5 load/one & iron1 & betwe5 magnetic ne$les4 ,9 ?is book occurs ! notable digression ^u ! subject ( amb] & ! electric =ces ( amb] & ( o!r sub/ances :i* :5 rubb$ %[1 z he discov]$1 simil> electrical p[]s4 ,an analysis ( ?is "p1 & a summ>y ( ,gilb]t's electrical discov]ies w be f\nd 9 ! ,notes pr9t$ = ! ,gilb]t ,club to accompany ! ,engli% translation 7#aijj7 ( ! ,de ,magnete4 ,aft] ?is digression ,gilb]t returns to ! attractive prop]ties ( ! load/one1 & to ! way !y are affect$ by giv+ x diff]5t %apes4 ,9 ! c\rse ( ?is enquiry1 he ann\nces 8 discov]y ( ! augm5tation ( ! p[] ( ! load/one by arm+ x ) iron caps1 an inv5tion :i* caus$ ,galileo to say3 ,i extremely praise1 admire1 & envy ?is au?or = t a conception s /up5d\s %\ld come into 8 m9d4 ,i ?9k him moreov] wor?y ( extraord9>y applause = ! _m new & true obs]vations t he has made4 ,gilb]t fur!r po9t$ out t ! load/one is surr\nd$ by a sort ( atmosph]e or orbe ( virtue )9 :i* ! magnetical effects c be obs]v$4 ,book #c1 on ! directive =ce ( ! magnet1 is full ( mo/ in/ructive exp]im5ts1 9 :i* ! t]rella figures l>gely1 relat+ to ! "q h[ "o magnet influ5ces ano!r & t5ds to make x po9t t[>d x4 ,all ?is 0 lead+ up to ! !ory ( t]re/rial magnetism2 = we f9d him nam+ ! p>ts ( 8 load/one globes ) poles1 equator & m]idians4 ,9 ?is book he dilates on ! obs]vation t v]tical iron rods1 su* z ! f9ial on ! ,*ur* ( ,/4 ,john at ,rim9i1 spontane\sly acquir$ magnetic prop]ties4 ,?is he trac$ to ! influ5ce ( ! e>?1 & demon/rat$ ! effect by magnetiz+ iron b>s by simply hamm]+ !m on ! anvil :ile !y lay 9 a nor? & s\? position4 ,book #d deals ) ! ,decl9ation1 or1 z x 0 !n call$1 ! v>iation ( ! compass4 ,he discusses its obs]vation & measurem5t1 ! influ5ce ( isl&s1 ! results obta9$ by travell]s to di/ant p>ts1 ,nova ,zembla1 ! ,gu9ea coa/1 ! ,can>y ,isles1 ,florida1 ,virg9ia1 ,cape ,race1 & ,brazil4 ,!n he rec\nts 8 exp]im5ts ) t]rellas hav+ unev5 surfaces to repres5t ! irregul>ities ( ! e>?'s cru/4 ,he po9ts out errors aris+ f ! fallaci\s practice ( sett+ ! ne$le obliquely "u ! c>d4 ,he consid]s 9 sep>ate *apt]s ! v>iations 9 ,nova ,zembla1 9 ! ,pacific1 9 ! ,m$it]ranean1 & 9 ! ,ea/]n ,ocean4 ,! fif? book is on ! ,dip4 ,gilb]t seiz$ ) avidity on ,norman's discov]y ( ?is effect1 & devis$ an improv$ =m ( dipp+-ne$le4 ,he exp]im5t$ on ! dip ( compass-ne$les plac$ at diff]5t po9ts ov] 8 t]rella1 & evolv$ a !ory on ! proportion :i* he conceiv$ to exi/ betwe5 ! latitude & ! dip4 ,argu+ f all too imp]fect data1 he prop\nd$ ! view t ! dip 0 ! same 9 any giv5 latitude2 & propos$ t seam5 %\ld asc]ta9 _! latitudes by simply obs]v+ ! dip4 ,he 0 aw>e t local irregul>ities might occur1 z !y d 9 ! decl9ation2 b 0 n det]r$ by ?is k f prop\nd+ 8 !ory ) mu* circum/ance & consid]able geometrical skill4 ,aft] ! publication ( 8 book he develop$ ! !ory /ill fur!r & gave x to ,blundevile = publication4 ,at ,gilb]t's sugge/ion ,briggs ( ,gre%am ,college calculat$ out a table ( dip & latitude4 ,x 01 h[ev]1 soon f\nd t ! facts deviat$ m or less widely f ! !ory4 ,fur!r obs]vations 9 o!r l&s %[$ ! me?od to be impracticable2 & ,gilb]t's hope to give to ! m>9] a magnetic measure ( latitude rema9$ unfulfill$4 ,book #e closes ) an eloqu5t passage 9 :i* ,gilb]t affirm$ ! neo-,platonic doctr9e ( ! animate nature ( ! univ]se1 & ass]t$ t ,?ales 0 "r :5 he held 7z ,ari/otle relates 9 ! ,de ,anima7 t ! load/one 0 animate1 be+ "p ( & inde$ ! *oice (fspr+ ( its animate "m ! e>?4 ,book #f1 z already m5tion$1 is devot$ to ,cop]nican ideas1 & conta9s ,gilb]t's "o contribution to ! sci5ce ( ,a/ronomy1 9 8 rem>k t ! fix$ />s 7previ\sly reg>d$ z fix$ 9 ! eigh? ( ! cele/ial sph]es at "o common di/ance f ! c5tral e>?7 7 9 reality set 9 ! heav5s at v>i\s di/ances f ! e>?4 ,f ?is brief analysis x w be se5 t ,gilb]t's claims to em95ce re/ n ^u any p>ticul> discov]y or inv5tion1 b ^u 8 hav+ built up a :ole exp]im5tal magnetic philosophy on a truly sci5tific basis1 9 place ( ! vague & wild speculations :i* _h previ\sly be5 accept$4 ,by 8 magnific5t g5]alization f ! small scale models to ! globe itself1 support$ f po9t to po9t by exp]im5tal rese>*es1 he creat$ ! sci5ce ( t]re/rial magnetism4 ,if f ! imp]fection ( ! data at 8 disposal he fell into sundry errors ( detail1 he yet f\nd$ ! me?od ( philosophiz+ by :i* ^? errors 7 9 due "t correct$4 ,& if = no?+ else ?an 8 ma/]ly v9dication ( sci5tific me?od1 & 8 rescue ( ! subject ( magnetism f ! p$antry & *>latanry into :i* 9 ! prec$+ ages x _h laps$1 8 memory mu/ be held 9 high hon\r4 ,alas t ( ! p]sonality ( s great a man s little %\ld be kn[n4 ,a brief b *>act]i/ic biography ( him is en%r9$ by old ,full] 9 8 ,wor?ies4 ,! poet ,dryd51 & ! epigrammati/ ,ow51 celebrat$ him 9 /ill brief] v]se4 ,8 portrait1 :i* hung = nigh two hundr$ ye>s 9 ! ,s*ools ,gall]y1 at ,ox=d1 disappe>$ a c5tury ago1 leav+ only a poor engrav+ to p]petuate 8 s*ol>ly c\nt5ance4 ,d\btless he is "o ( ! f\r physicians depict$ by ! p5cil ( ,camd5 9 8 fam\s c>toon 7n[ 9 ! ,briti% ,museum71 z walk+ 9 ! fun]al procession ( ,que5 ,elizabe?4 ,( 8 h&writ+ n a ve/ige 0 kn[n until ab\t five ye>s ago1 :5 a signature 0 une>!d 9 ! ,record ,(fice4 ,subsequ5tly f\r signatures 7 f\nd 9 ! books ( ,/4 ,john's ,college2 & rec5tly !re has come to light a volume ( ,ari/otle be>+ ,gilb]t's own m>g9al notes4 ,8 w lies at ,som]set ,h\se1 b x is only a copy4 ,( 8 f9e collection ( m9]als & load/ones1 :i* ) 8 maps1 books1 manuscripts1 & correspond5ce ) ,s>pi & ,sagr$o & o!rs1 he bequea!d to ! ,college ( ,physicians1 no?+ rema9s3 !y p]i%t 9 ! ,great ,fire ( ,london4 ,9 a quiet corn] ( ! ,city ( ,col*e/] /&s ! qua9t old h\se :]e he liv$1 & :]e1 accord+ to local tradition1 he once receiv$ ! ,que54 ,& h>d by x is ! *ur* ( ,holy ,tr9ity1 9 :i* a mural tablet records 8 virtues & m>ks 8 la/ re/+ place4 ,b 8 true monum5t is ! immortal treatise 9 :i* he laid ! f\ndations ( t]re/rial magnetism & ( ! exp]im5tal sci5ce ( electricity4 ,to ! names ( ! m5 :o made great ! age ( ,que5 ,elizabe?1 :o add$ lu/re to ! ,engl& ov] :i* %e rul$1 & made x fam\s 9 =eign discov]y1 9 sea-craft1 9 lit]ature1 9 poetry1 & 9 drama1 mu/ be jo9$ t ( ! man :o equally add$ lu/re 9 sci5ce1 ,doctor ,william ,gilb]t4 ,?is disc\rse on ,william ,gilb]t & t]re/rial magnetism 9 ! "t ( ,que5 ,elizabe? 0 deliv]$ by ,silvanus ,p4 ,?ompson at ! meet+ ( ! ,royal ,geographical ,society on ,m>* tw5ty-?ird ,,mdcccciii on ! occasion ( ! t]c5t5>y ( ! dea? ( ,que5 ,elizabe?1 & is n[ pr9t$ by ,*>les ,:itt+ham & ,company at ! ,*iswick ,press4 ,illu/ration ,transcrib]'s note3 ,! orig9al book us$ ! long s1 :i* has be5 *ang$ to ! mod]n s "h4 ,o!r ar*aic spell+s h n be5 *ang$4 ,! illu/rations are small decorations4