Experiments and observations relating to acetons acid, fixable air, dense inflammable air, oils, and fuel ; the matter of fire and light, metallic reduction, combustion, fermentation, putrefaction, respiration and other subjects of chemical philosophy / By Bryan Higgins, M. D.

  • Higgins, Bry. (Bryan), 1737?-1820.
Date:
1786
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Licence: Public Domain Mark

Credit: Experiments and observations relating to acetons acid, fixable air, dense inflammable air, oils, and fuel ; the matter of fire and light, metallic reduction, combustion, fermentation, putrefaction, respiration and other subjects of chemical philosophy / By Bryan Higgins, M. D. Source: Wellcome Collection.

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    oonfumption of empyreal air, and the quan- , tity of phlogiificated air greatly exceeding that which might have eluded my previous trials of the empyreal air, both contributed to thew tha,t fome, phlogiflic air was pro- duced or, detached during the procefs : And now that Mr. Cavendifli’s experiments prove that the phlogiftic air could not have been formed of the empyreal air, I do not hefitate in concluding, that the former was expelled from the lungs during the refpi- ration, along with the matter which con- tributed to the formation of the fixable air. It therefore is not to be regarded in the prefent confideration of the expenditure of the empyreal air. As the purfuit of this laft was my chief purpofe, and I have not room now for a circumftantial detail of particulais, I fliall confine myfelf to the following report After the lafl refpiration, which was main- tained with great difficulty and anxiety, the empyreal air difappeared totally, the refidue being mere phlogiflic air, and the fixable air was not equal in weight to the expen-