Читать книгу Experimental Investigation of the Spirit Manifestations - Robert Hare - Страница 3
APPENDIX.
Оглавление| Letter to the Episcopal Clergy.—Letter from Dr. Hare to the clergy of the Protestant Episcopal Church, offering to lay before them the new evidence of immortality. (Submitted to the late convention, Philadelphia, May 15, 1855.) | 427 |
| A Letter from Dr. Hare.—Addressed to the Association for the Advancement of Science, at their meeting, August 18, 1855—Preliminary remarks | 430 |
| Farraday’s Speculation.—Speculation touching electric conduction and the nature of matter. By Farraday | 432 |
| Motives for Republishing my Memoir on Electrical Theory | 437 |
| Electrical Theory.—Objections to the theories severally of Franklin, Dufay, and Ampere, with an effort to explain electrical phenomena by statical or undulatory polarization—Supposed grounds for a theory—Proofs of the existence of an enormous quantity of imponderable matter in metals—Electrical phenomena attributed to stationary or undulatory polarization—On the perfect similitude between the polarity communicated to iron filings by a magnetized steel bar and a galvanized wire—Process by which the ethereo-ponderable atoms within a galvanic circuit are polarized by the chemical reaction—Difference between electro-ethereal and ethereo-ponderable polarization—Competency of a wire to convey a galvanic discharge is as its sectional area, while statical discharges of frictional electricity, preferring the surface, are promoted by its extension. Yet in proportion as such discharges are heavy, the ability of a wire to convey them and its magnetic energy become more dependent on its sectional area, and less upon extent of surface—Difference between frictional electricity and galvanic does not depend on the one being superior as to quantity, the other as to intensity; but on the different degrees in which the ethereo-ponderable atoms of the bodies affected are deranged from their natural state of neutralized polarity—Of ethereo-ponderable deflagration—Summary. | 439 |
Robt Hare M D. EMERITUS PROFESSOR OF CHEMISTRY IN THE UNIVERSITY OF PENNSYLVANIA, GRADUATE OF YALE COLLEGE AND HARVARD UNIVERSITY, ASSOCIATE OF THE SMITHSONIAN INSTITUTE AND MEMBER OF VARIOUS LEARNED SOCIETIES. Engraved at J. M. Butlers establishment, 84 Chestnut St. Philada.
