Philosophical observations on the senses of vision and hearing ; to which are added, a treatise on harmonic sounds, and an essay on conbustion and animal heat / by J. Elliott, apothecary.

  • Sir John Eliot, 1st Baronet
Date:
1780
Catalogue details

Licence: Public Domain Mark

Credit: Philosophical observations on the senses of vision and hearing ; to which are added, a treatise on harmonic sounds, and an essay on conbustion and animal heat / by J. Elliott, apothecary. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    may be more heated in the lungs, and a]fo that its^ particles may carry a greater quantity of fire into the body to be extricated by the phlogifton from the nerves. Fifties, whofe heat is required to be but little, decompofe a fmaller quantity of air, in an equal time than quadrupeds; and the air which is feparatedfrom the water by their gills, and again purified by water, may be fufficient for that purpofe. Now as lefs fire is feparated from the blood of fifties than from that of quadrupeds, it argues that lefs phlogifton is alfo imparted to the blood by their nerves: and this agrees with an ob- fervation of phyfiologifts, that the fibres of cold animals are more irritable than thofe of hot ones. The balance therefore is preferred; for as lefs heat is required to liquify their blood, Sec. than in land animals, fo lefs phlogifton is necelTary tot t>ie contraction of their fibres, It would be eafy to enlarge on fuch a fub- jecl: as this ; but as I only offer what has been faid as fpeculation, and by way of hint to be profecuted by others, I ftiall not here purfue the idea any farther. I will only add a wifli hat what I have offered, may not give occa- fion