Observations on some of the physical, chemical, physiological and pathological phenomena of malarial fever / by Joseph Jones.

  • Joseph Jones
Date:
1859
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Licence: Public Domain Mark

Credit: Observations on some of the physical, chemical, physiological and pathological phenomena of malarial fever / by Joseph Jones. 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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    Volta's immortal discovery demonstrated the relation between electrical and chemical phenomena; the decomposition of water by Nicholson, in 1800, revealed the chemical energy of electricity, and constituted the starting point of electro-chemical research; the brilliant discoveries of Davy1 demonstrated the close relation, if not the identity of chemical affinity and electricity; the labors of Becquerel established the synthetical influence of electricity; the profound and extensive researches of Faraday,2 following up the 1. That the quantity of heat produced by the friction of bodies, whether solid or liquid, is always proportional to the quantity of force expended. 2. That the quantity of heat capable of increasing the temperature of a pound of water (weighed in vacuo, taken at between 55 and 6(P) by 1° F. requires for its evolution the expenditure of a mechanical force represented by the fall of 772 pounds through the space of one foot. 12 Memoirs on the Free Transmission of Radiant Heat through different Solid and Liquid Bodies, by M. Melloni, Taylor's Scientific Memoirs, vol. i. pp. 1—74, p. 325, p. 388. The Mathematical Theory of Heat, by S. D. Poisson, Annales de Chimie et de Physique, 'vol. lix. p. 71, et seq. See Analysis, in Taylor's Scientific Memoirs, vol. i. p. 122. Memoir on the Motive Power of Heat, by E. Clapeyron, Taylor's Scientific Memoirs, vol. i. p. 347. Kupffer, by comparing the expansion which a metal wire suffers by heat with the elongation produced by stretching it with a given weight, found that the heat necessary to raise a pound of water 1° F. is equivalent to 661 foot-pounds. Phil. Mag. [4], xli. 393. Kronig on the Fundamental Principles of a Theory of Gases, Pogg. Ann., xcix. 315. Investigations on Radiant Heat, by H. Knoblauch, Taylor's Scientific Memoirs, vol. v. 188—383. On the Heat and Elasticity of Gases and Vapors, and on the Principles of the Theory of Steam-Engines, by C. Holtzmann, Manheim, 1845. See also Taylor's Scientific Memoirs, vol. iv. p. 189. 1 In September, 1800, Sir Humphrey Davy published his first paper, describing experiments similar to those of Nicholson and Carlisle on the decomposition of water.—Nicholson's Journal, 4to. iv. 275. In 1802, Davy conjectured that in all cases of chemical decomposition the elements might be related to each other as electrically positive and negative, and in 18^6 he attempted the solution of this question, and after referring to his experiments of 1800, 1801, and 1802, and to a number of new facts, which showed that oxygen, alkalies, and acids, and oxidizable and noble metals, were in electrical relations of positive and negative, he drew the conclusion, that the combinations and decompositions by electricity were referable to the law of electrical attractions and repulsions, and advanced the hypothesis that chemical and electrical attractions were produced by the same cause, acting in the one case on particles, in the other on masses ; and that the same property, under different modifications, was the cause of all the phenomena exhibited by different voltaic combinations. —Phil. Trans., 1826, p. 389. 2 On the Induction of Electric Currents ; the Evolution of Electricity from Magnetism ; a New Electrical Condition of Matter; Arago's Magnetic Phenomena, Phil. Trans., 1831. Terrestrial Magneto-Electric Induction ; Force and Direction