john2072
czołg
Dołączył: 26 Sty 2011
Posty: 1715
Przeczytał: 0 tematów
Ostrzeżeń: 0/10
Skąd: England
|
 Wysłany: Pią 15:02, 11 Lut 2011 Temat postu: On the Makaloa Mat LondonJack Published bbaafgkk |
|
|
heconditionoftheroommadeiteasy
tosecurespecimens.Itoreoffaboutadozenpiecesandwroteanumber
oneachtocorrespondwithnumbersthatImarkedonaroughsketch-
planoftheroomwhichIdrewfirst.Myexpectationwasthatif—asI
202
believed—arsenicalcandleshadbeenburntinthatroomarsenicwould
havebeendepositedonallthewallsbutinvaryingamountspropor-
tionatetothedistanceofthewallfromthecandle.Theloosepieceofpa-
peronthewallbythebedwasofcoursetherealtouchstoneofthecase
foriftherewerenoarsenicinitthetheoryofthearsenicalcandlewould
hardlybetenable.Ithereforetooktheextraprecautionofwritingafull
descriptionofitspositiononthebackofthepieceanddepositeditfor
greater safety in my letter-case.
AssoonasIreachedhomethatdayIspreadoutthetornfragmenton
thewidestageofaculturemicroscopeandexamineditsoutersurface
withastrongtoplight.Andtheveryfirstglancesettledthequestion.
Thewholesurfacewasspangledoverwithminutecrystalsmanyof
themhardlyaten-thousandthofaninchindiametersparklinginthe
stronglightlikediamondsandperfectlyunmistakable;thecharacteristic
octahedral crystals of arsenious acid.
ButdistinctiveastheywereItooknothingforgranted.Snippingoffa
good-sizedpieceofthepaperIsubmittedittotheMarsh—Berzeliustest
and [link widoczny dla zalogowanych]yilai:
[link widoczny dla zalogowanych]
she must have
managed it so on purpose
Post został pochwalony 0 razy
|
|
