a history of science-2-第30章

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　he　was　obliged　to　give　up　the　ghost　when　the　effect　of　this　small　quantity　had　passed　away。　This　belief　in　the　supernatural　power　of　the　philosopher's　stone　to　prolong　life　and　heal　diseases　was　probably　a　later　phase　of　alchemy；　possibly　developed　by　attempts　to　connect　the　power　of　the　mysterious　essence　with　Biblical　teachings。　The　early　Roman　alchemists；　who　claimed　to　be　able　to　transmute　metals；　seem　not　to　have　made　other　claims　for　their　magic　stone。　By　the　fifteenth　century　the　belief　in　the　philosopher's　stone　had　become　so　fixed　that　governments　began　to　be　alarmed　lest　some　lucky　possessor　of　the　secret　should　flood　the　country　with　gold；　thus　rendering　the　existing　coin　of　little　value。　Some　little　consolation　was　found　in　the　thought　that　in　case　all　the　baser　metals　were　converted　into　gold　iron　would　then　become　the　〃precious　metal；〃　and　would　remain　so　until　some　new　philosopher's　stone　was　found　to　convert　gold　back　into　irona　much　more　difficult　feat；　it　was　thought。　However；　to　be　on　the　safe　side；　the　English　Parliament；　in　1404；　saw　fit　to　pass　an　act　declaring　the　making　of　gold　and　silver　to　be　a　felony。　Nevertheless；　in　1455；　King　Henry　VI。　granted　permission　to　several　〃knights；　citizens　of　London；　chemists；　and　monks〃　to　find　the　philosopher's　stone；　or　elixir；　that　the　crown　might　thus　be　enabled　to　pay　off　its　debts。　The　monks　and　ecclesiastics　were　supposed　to　be　most　likely　to　discover　the　secret　process；　since　〃they　were　such　good　artists　in　transubstantiating　bread　and　wine。〃　In　Germany　the　emperors　Maximilian　I。；　Rudolf　II。；　and　Frederick　II。　gave　considerable　attention　to　the　search；　and　the　example　they　set　was　followed　by　thousands　of　their　subjects。　It　is　said　that　some　noblemen　developed　the　unpleasant　custom　of　inviting　to　their　courts　men　who　were　reputed　to　have　found　the　stone；　and　then　imprisoning　the　poor　alchemists　until　they　had　made　a　certain　quantity　of　gold；　stimulating　their　activity　with　tortures　of　the　most　atrocious　kinds。　Thus　this　danger　of　being　imprisoned　and　held　for　ransom　until　some　fabulous　amount　of　gold　should　be　made　became　the　constant　menace　of　the　alchemist。　It　was　useless　for　an　alchemist　to　plead　poverty　once　it　was　noised　about　that　he　had　learned　the　secret。　For　how　could　such　a　man　be　poor　when；　with　a　piece　of　metal　and　a　few　grains　of　magic　powder；　he　was　able　to　provide　himself　with　gold？　It　was；　therefore；　a　reckless　alchemist　indeed　who　dared　boast　that　he　had　made　the　coveted　discovery。　The　fate　of　a　certain　indiscreet　alchemist；　supposed　by　many　to　have　been　Seton；　a　Scotchman；　was　not　an　uncommon　one。　Word　having　been　brought　to　the　elector　of　Saxony　that　this　alchemist　was　in　Dresden　and　boasting　of　his　powers；　the　elector　caused　him　to　be　arrested　and　imprisoned。　Forty　guards　were　stationed　to　see　that　he　did　not　escape　and　that　no　one　visited　him　save　the　elector　himself。　For　some　time　the　elector　tried　by　argument　and　persuasion　to　penetrate　his　secret　or　to　induce　him　to　make　a　certain　quantity　of　gold；　but　as　Seton　steadily　refused；　the　rack　was　tried；　and　for　several　months　he　suffered　torture；　until　finally；　reduced　to　a　mere　skeleton；　be　was　rescued　by　a　rival　candidate　of　the　elector；　a　Pole　named　Michael　Sendivogins；　who　drugged　the　guards。　However；　before　Seton　could　be　〃persuaded〃　by　his　new　captor；　he　died　of　his　injuries。　But　Sendivogins　was　also　ambitious　in　alchemy；　and；　since　Seton　was　beyond　his　reach；　he　took　the　next　best　step　and　married　his　widow。　From　her；　as　the　story　goes；　he　received　an　ounce　of　black　powderthe　veritable　philosopher's　stone。　With　this　he　manufactured　great　quantities　of　gold；　even　inviting　Emperor　Rudolf　II。　to　see　him　work　the　miracle。　That　monarch　was　so　impressed　that　he　caused　a　tablet　to　be　inserted　in　the　wall　of　the　room　in　which　he　had　seen　the　gold　made。　Sendivogins　had　learned　discretion　from　the　misfortune　of　Seton；　so　that　he　took　the　precaution　of　concealing　most　of　the　precious　powder　in　a　secret　chamber　of　his　carriage　when　he　travelled；　having　only　a　small　quantity　carried　by　his　steward　in　a　gold　box。　In　particularly　dangerous　places；　he　is　said　to　have　exchanged　clothes　with　his　coachman；　making　the　servant　take　his　place　in　the　carriage　while　he　mounted　the　box。

About　the　middle　of　the　seventeenth　century　alchemy　took　such　firm　root　in　the　religious　field　that　it　became　the　basis　of　the　sect　known　as　the　Rosicrucians。　The　name　was　derived　from　the　teaching　of　a　German　philosopher；　Rosenkreutz；　who；　having　been　healed　of　a　dangerous　illness　by　an　Arabian　supposed　to　possess　the　philosopher's　stone；　returned　home　and　gathered　about　him　a　chosen　band　of　friends；　to　whom　he　imparted　the　secret。　This　sect　came　rapidly　into　prominence；　and　for　a　short　time　at　least　created　a　sensation　in　Europe；　and　at　the　time　were　credited　with　having　〃refined　and　spiritualized〃　alchemy。　But　by　the　end　of　the　seventeenth　century　their　number　had　dwindled　to　a　mere　handful；　and　henceforth　they　exerted　little　influence。　Another　and　earlier　religious　sect　was　the　Aureacrucians；　founded　by　Jacob　Bohme；　a　shoemaker；　born　in　Prussia　in　1575。　According　to　his　teachings　the　philosopher's　stone　could　be　discovered　by　a　diligent　search　of　the　Old　and　the　New　Testaments；　and　more　particularly　the　Apocalypse；　which　contained　all　the　secrets　of　alchemy。　This　sect　found　quite　a　number　of　followers　during　the　life　of　Bohme；　but　gradually　died　out　after　his　death；　not；　however；　until　many　of　its　members　had　been　tortured　for　heresy；　and　one　at　least；　Kuhlmann；　of　Moscow；　burned　as　a　sorcerer。　The　names　of　the　different　substances　that　at　various　times　were　thought　to　contain　the　large　quantities　of　the　〃essence〃　during　the　many　centuries　of　searching　for　it；　form　a　list　of　practically　all　substances　that　were　known；　discovered；　or　invented　during　the　period。　Some　believed　that　acids　contained　the　substance；　others　sought　it　in　minerals　or　in　animal　or　vegetable　products；　while　still　others　looked　to　find　it　among　the　distilled　〃spirits〃the　alcoholic　liquors　and　distilled　products。　On　the　introduction　of　alcohol　by　the　Arabs　that　substance　became　of　all…absorbing　interest；　and　for　a　long　time　allured　the　alchemist　into　believing　that　through　it　they　were　soon　to　be　rewarded。　They　rectified　and　refined　it　until　〃sometimes　it　was　so　strong　that　it　broke　the　vessels　containing　it；〃　but　still　it　failed　in　its　magic　power。　Later；　brandy　was　substituted　for　it；　and　this　in　turn　discarded　for　more　recent　discoveries。　There　were　always；　of　course；　two　classes　of　alchemists：　serious　investigators　whose　honesty　could　not　be　questioned；　and　clever　impostors　whose　legerdemain　was　probably　largely　responsible　for　the　extended　belief　in　the　existence　of　the　philosopher's　stone。　Sometimes　an　alchemist　practised　both；　using　the　profits　of　his　sleight…of…hand　to　procure　the　means　of　carrying　on　his　serious　alchemical　researches。　The　impostures　of　some　of　these　jugglers　deceived　even　the　most　intelligent　and　learned　men　of　the　time；　and　so　kept　the　flame　of　hope　constantly　burning。　The　age　of　cold　investigation　had　not　arrived；　and　it　is　easy　to　understand　how　an　unscrupulous　mediaeval　Hermann　or　Kellar　might　completely　deceive　even　the　mos