Scientific American Supplement, No. 598, June 18, 1887 by Various
page 120 of 124 (96%)
page 120 of 124 (96%)
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magnet; (3) that an electromagnet produces exactly the same effect whether
it be or be not excited by a current; and (4) that a glass tube filled with cold or warm water likewise produces analogous effects, which disappear when the water is raised to the temperature of the human body. It seems, therefore, that the magnetic properties of the magnet count for nothing in the phenomena observed.--_Journal de Physique_. * * * * * THE SCIENTIFIC AMERICAN SUPPLEMENT. PUBLISHED WEEKLY. Terms of Subscription, $5 a Year. Sent by mail, postage prepaid, to subscribers in any part of the United States or Canada. Six dollars a year, sent, prepaid, to any foreign country. All the back numbers of THE SUPPLEMENT, from the commencement, January 1, 1876, can be had. Price, 10 cents each. All the back volumes of THE SUPPLEMENT can likewise be supplied. Two volumes are issued yearly. Price of each volume, $2.50, stitched in paper, or $3.50, bound in stiff covers. |
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