Outlines of a course of lectures on chemistry / by T. Garnett, M. D. member of the Royal Medical, Physical, and Natural History Societies of Edinburgh; the Literary and Philosophical Society of Manchester; the the [sic] Medical Society of London; the Royal Irish Academy, and professor of physics and philosophy in Anderson's Institution, Glasgow.

  • Garnett, Thomas, 1766-1802.
Date:
1797
Catalogue details

Licence: Public Domain Mark

Credit: Outlines of a course of lectures on chemistry / by T. Garnett, M. D. member of the Royal Medical, Physical, and Natural History Societies of Edinburgh; the Literary and Philosophical Society of Manchester; the the [sic] Medical Society of London; the Royal Irish Academy, and professor of physics and philosophy in Anderson's Institution, Glasgow. Source: Wellcome Collection.

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

    39/180 (page 35)
    when heated up to 1060, and if we could keep it in this degree of heat, it would always be in the form of an elaftic fluid. All gafes, or elaftic fluids, therefore, depend, upon the combination of particular fubftances with caloric; and thofe which we call permanently elaftic, are only fo, becaufe we cannot fo far reduce their temperature, as to difpofe them to part with their latent heat, otherwife they would undoubted- , ly become fluid or folid. Though the vaporific point of mod bodies is higher than what is neceflary for their fluidity, this is not the cafe with regard to all; for there are fome folid bodies which begin to be converted into va- pour by a fmaller degree of heat than is neceflary to render them fluid. From obfervations on the manner in which va- pour is produced from different bodies, we can un- derstand feveral chemical operations, fuch as eva- poration, diftillation, and fublimation. With re- gard to evaporation, we may lay down the following general confequences. i. If any thermometer be plunged into aneva- porable