The elements of medical chemistry : embracing only those branches of chemical science which are calculated to illustrate or explain the different objects of medicine, and to furnish a chemical grammar to the author's Pharmacologia / by John Ayrton Paris.

  • Paris, John Ayrton, 1785-1856.
Date:
1825
Catalogue details

Licence: Public Domain Mark

Credit: The elements of medical chemistry : embracing only those branches of chemical science which are calculated to illustrate or explain the different objects of medicine, and to furnish a chemical grammar to the author's Pharmacologia / by John Ayrton Paris. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    ON HEAT or CALORIC 148 Caloric, the matter of heat, 148—Expands Bodies,149 —Exceptions to this law, 149—Free and combined caloric, 151—Conducting power of bodies, 151— Their differences, 152—Utility of clothing founded on its conducting power, 152—Feeble conducting power of liquids, 155—Phenomena of radiant heat, 157—Caloric given out during the passage of a fluid to the solid state, 158. FLUIDITY 159 Fluidity the effect of caloric, 159—Fusion, 160. VAPORIZATION - - 161 Vapours and gases, 162—Phenomena of ebullition, 163—Boiling points of liquids influenced by pres* sure; 163—Barry's apparatus for boiling in vacuo, applied for making extracts, 165—Latent heat of steam, 166—Evaporation produces cold, 167— Theories of Black and Irvine, 168— Capacities of bodies for caloric, 169—Methods of estimating them, 169 -The cooling of bodies influenced by their capacities, 171—Objections to Irvine's theo- ry, 171—Heat from mechanical compression, 172 —Measures of temperature, 173. OF THE DIFFERENT METHODS OF MEASUR- ING TEMPERATURE 173 The Thermometer, 173—Air Thermometer, 174— Differential Thermometer, 175—Fahrenheit's, 175—Reaumur's, and the centigrade Thermo- meter, 176—Pyrometer, Calorimeter, 177. OF THE DIFFERENT ARTIFICIAL PROCESSES BY WHICH TEMPERATURE MAY BE IN- CREASED OR DIMINISHED 177 1. Methods of producing cold artificially. A. By Liquefaction. Table of frigorific mixtures, 178—Produc- tive of cold, 180. B. By Evaporation. Different evaporating processes, 181—Of that of Gay Lussac and Leslie, 181— Practical remarks, 183. 2. Methods of producing heat artificially 184 A. By Percussion. B. By Friction.