The philosophy of chemistry, or fundamental truths of modern chemical science, arranged in a new order ... / by A.F. Fourcroy. Translated from the French of the second edition. Signed by the author.

  • Fourcroy, Antoine-François de, comte, 1755-1809.
Date:
1795
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Licence: Public Domain Mark

Credit: The philosophy of chemistry, or fundamental truths of modern chemical science, arranged in a new order ... / by A.F. Fourcroy. Translated from the French of the second edition. Signed by the author. Source: Wellcome Collection.

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    ( 183 ) known how much animal fubfances con- tribute in artificial nitre-pits, arifes from the union of oxygen with azot. À certain quantity of hydrogen gas is extricated, and carries off with it carbon, fulphur, and even . phofphorus: hence the various noifome fmells, and perhaps the phofphorefcence, of all putrefying animal matter. XIV. When all thefe volatile principles have united two and two together, and dif- fufed themfelves in the atmofphere, nothing remains but a portion of carbon, combined or mingled with fixed faline fubftances, fuch as the phofphats of foda and of lime. Thefe refidua form a fort of mould termed animal earth, which frequently retains a little ful- phurated and carbonated hydrogen gas, fat, and extract, and in this vegetables find in abundance the principles requifite for the formation of their materials. It is on this account, that the refiduum of animal matter is fo proper for manure, when fufficiently _ concocted, XV. A certain portion of water is necef- fary for this putrid decompofition of animal | fubs