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Project Gutenberg's On the magnet, by William Gilbert of Colchester This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org Title: On the magnet; a new physiology, demonstrated by many arguments & experiments Author: William Gilbert of Colchester Release Date: September 26, 2010 [EBook #33810] Language: English Character set encoding: ASCII *** START OF THIS PROJECT GUTENBERG EBOOK ON THE MAGNET *** Produced by Curtis Weyant, Keith Edkins and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by the Posner Memorial Collection (http://posner.library.cmu.edu/Posner/)) VVILLIAM GILBERT OF COLCHESTER, PHYSICIAN OF LONDON. ON THE MAGNET, MAGNETICK BODIES ALSO, AND ON the great magnet the earth; a new Physiology, _demonstrated by many arguments_ & experiments. [Illustration] LONDON * * * * * IMPRINTED AT THE CHISWICK PRESS ANNO MCM. * * * * * [Illustration] * * * * * {ij} [Illustration] PREFACE TO THE CANDID READER, STUDIOUS OF THE MAGNETICK PHILOSOPHY. Clearer proofs, in the discovery of secrets, and in the investigation of the hidden causes of things, being afforded by trustworthy experiments and by demonstrated arguments, than by the probable guesses and opinions of the ordinary professors of philosophy: so, therefore, that the noble substance of that great magnet, our common mother (the earth), hitherto quite unknown, and the conspicuous and exalted powers of this our globe, may be the better understood, we have proposed to begin with the common magnetick, stony, and iron material, and with magnetical bodies, and with the nearer parts of the earth which we can reach with our hands and perceive with our senses; then to proceed with demonstrable magnetick experiments; and so penetrate, for the first time, into the innermost parts of the earth. For after we had, in order finally to learn the true substance of the globe, seen and thoroughly examined many of those things which have been obtained from mountain heights or ocean depths, or from the profoundest caverns and from
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