Proceedings, American Philosophical Society (vol. 2, no. 23)

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Página 215 - TRANSACTIONS of the Society instituted at London for the Encouragement of Arts, Manufactures and Commerce, with the Premiums offered in the year 1783.
Página 216 - THE AMERICAN JOURNAL OF THE MEDICAL SCIENCES, EDITED BY ISAAC HAYS, MD, is published Quarterly, on the first of January, April, July, and October. Each number contains at least two hundred and eighty large octavo pages, handsomely and appropriately illustrated, wherever necessary.
Página 223 - Resolutions, Laws and Ordinances Relating to the Pay, Half Pay, Commutation of Half Pay, Bounty Lands, and other Promises made by Congress to the Officers and Soldiers of the Revolution : To the Settlement of the Accounts between the United States and the Several States ; and to Funding the Revolutionary Debt.
Página 209 - Principles of General and Comparative Physiology. By William B. Carpenter, MD 8vo. London, 1841. — From the Author. Principles of Human Physiology, with their chief Application to Pathology, Hygiene, and Forensic Medicine. By William B. Carpenter, MD 8vo. London, 1842. — From the Author. Tic Douloureux, or Neuralgia Facialis, and other Nervous Affections; their Seat, Nature and Cause: with Cases illustrating successful Methods of Treatment. By RH Allnatt, MD 8vo. London, 1841. — From the Author....
Página 218 - ... (a) The community of effect, as respects the extrication of hydrogen by contact of certain metals with aqueous solutions of sulphuric and chlorohydric acid, is not an adequate ground for an inferred analogy of composition; since it must inevitably arise that any radical will, from any compound, displace any other radical, when the forces...
Página 228 - he had succeeded in magnetizing needles by the secondary current, in a wire more than two hundred and twenty feet distant from the wire through which the primary current was passing, excited by a single spark from an electrical machine...
Página 220 - The hydrated oxide precipitated on the membrane, came from the reaction of the alkali with the sulphate of copper ; the precipitated oxide of this metal from the oxygen of the soda acting as an anion ; and the deposit of metallic copper from the solutions performing, feebly, the part of electrodes, while themselves the subjects of electrolyzation. (r.) The so called principles of Liebig,* by which his theory of organic acids is preceded, are mainly an inversion of the truth, since...
Página 220 - ... from the oxygen of the soda acting as an anion ; and the deposit of metallic copper from the solutions performing, feebly, the part of electrodes, while themselves the subjects of electrolyzation. (r.) The so called principles of Liebig,* by which his theory of organic acids is preceded, are mainly an inversion of the truth, since they make the capacity of saturation of hydrated acids dependent on the quantity of hydrogen in their basic water, instead of making both the quantity of water, and,...
Página 218 - ... in the combination, the evolution of hydrogen from water, by the contact with any metal of the alkalies, must prove oxygen to be a halogen body ; also the evolution of hydrogen from sulphydric, selenhydric, or telluhydric acids, by similar means, would justify an inference that sulphur, selenium, or tellurium, as well as oxygen, belong to the halogen, or "salt radical" class. (c.) The amphigen bodies being thus proved to belong to the halogen class, oxides, sulphides, selenides, and tellurides,...
Página 219 - The argument in favor of similarity of composition in the haloid and ampbide salts, founded on a limited resemblance of properties in some instances, is more than counterbalanced by the extreme dissimilitude in many others : — (e) As, in either class, almost every property may be found which is observed in any chemical compound, the existence of a similitude, in some cases, might be naturally expected...

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