john4525
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Dołączył: 25 Sty 2011
Posty: 1733
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Skąd: England
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 Wysłany: Pią 19:38, 11 Lut 2011 Temat postu: ikediamondsandperfectlyunmistakable |
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ikediamondsandperfectlyunmistakable;thecharacteristic
octahedral crystals of arsenious acid.
ButdistinctiveastheywereItooknothingforgranted.Snippingoffa
good-sizedpieceofthepaperIsubmittedittotheMarsh—Berzeliustest
andgotaverypronounced'arsenicalmirror'whichputthematterbey-
ondanypossibledoubtorquestion.ImayaddthatItestedalltheother
piecesandgotanarsenicreactionfromthemallvaryingroughlyac-
cording to their distance from the table on which the candle stood.
Thustheexistenceofthearsenicalcandlewasnolongeramatterof
hypothesisorevenofmereprobability;itwasvirtuallyademonstrated
fact.Thenextquestionwaswhoputthearsenicintothecandle?Allthe
evidencesuchasitwaspointedtoBarbara.Buttherewasnotenoughof
it.Nosinglefactconnectedherquitedefinitelywiththecandlesandit
hadtobeadmittedthattheyhadpassedthroughotherhandsthanhers
andthatthecandle-boxwasaccessibletoseveralpeopleespeciallydur-
ingherabsence.Clearevidencethenwasrequiredtoassociateher—or
someoneelse—withthosepoisonedcandlesandIhadjustafainthope
that such evidence might be forthcoming. This was how I reasoned:
Herewasacaseofpoisoninginwhichthepoisonwasself-admin-
isteredandtheactualpoisonerwasabsent.Consequentlyitwasim-
possibletogiveacalculateddoseonagiven [link widoczny dla zalogowanych]yilai:
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