The London manual of medical chemistry, comprising an interlinear verbal translation of the Pharmacopoeia, with extensive ... notes ... together with the treatment and tests of poisons, and ... the theory of pharmaceutical chemistry ... / By William Maugham.

  • Maugham, William.
Date:
1831
Catalogue details

Licence: Public Domain Mark

Credit: The London manual of medical chemistry, comprising an interlinear verbal translation of the Pharmacopoeia, with extensive ... notes ... together with the treatment and tests of poisons, and ... the theory of pharmaceutical chemistry ... / By William Maugham. Source: Wellcome Collection.

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    from the surface of the body with absorption of oxygen gas, as at the lungs; and it has been proved by Spal- lanzani that some of the lower animals, such as frogs, lizards, and serpents, act precisely in the same way on the air by their skins as by the organs of respiration; and according to Dr. Edwards, it is owing to this cir- cumstance that these animals are enabled to live for a great length of time under water. It might be expected that something should be said in this place respecting the origin of animal heat; but as no satisfactory conclusions have been arrived at— one party ascribing it to chemical changes taking place within the body during the conversion of venous into arterial blood, and another to nervous influence—the reader is referred to other works. Carbonic oxide,—There are different methods of pro- curing this as well as most other compounds: put a mixture of dried chalk and bright iron filings into a gun-barrel or iron retort, apply a red heat, and collect the gas which is liberated over water. The theory of the process is as follows: the heat drives off* the car- bonic acid from the chalk, and the iron abstracting 1 atom of oxygen from it at the moment of its libera- tion converts it into carbonic oxide. The carbonic oxide, however, does not come over pure, but is mixed with carbonic acid, from which it may be separated by washing it with lime-water. Carbonic oxide gas is colourless, it possesses a dis- agreeable odour, is destructive of life and combustion, and is inflammable. During its combustion carbonic