The generation of animal heat, investigated / [E. Peart].

  • Peart, E. (Edward), 1756?-1824
Date:
1788
Catalogue details

Licence: Public Domain Mark

Credit: The generation of animal heat, investigated / [E. Peart]. Source: Wellcome Collection.

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    matter of fire, and forming vital air. But how aie thefe principles to be applied, to explain the fol¬ lowing chemical la£ls ? The Calx of Silver, according to M. Lavoifier, is a combination of filver with the oxyginous principle ; now if this calx be expofed to the So¬ lar light, the filver is revived, and the oxyginous principle is feparatcd ; not by combining with heat, becaufe if the fame calx be expofed to an equal, or greater degree of heat, without light, the filver is not revived. M. Lavoifier muff therefore explain, why this oxyginous principle, feparates irom the filver to combine with light ; what that combination produces ; and why it would not combine with the matter of heat, which feems to be the molt common form of its feparation, from the metal with which it was combined. Again, from analogy, I fhould fuppofe, when filver is revived from its calx, by the aftion of light, that vital air is pro¬ duced ; If fo, how does the union of Light with the Oxyginous Principle, form Vital Air ? What makes me fuppofe that pure, or vital air, is produced, during the revival of filver, by ex- pofing its calx to the light, is, the produ6iion of vital