Duff, A. Wilmer (Alexander Wilmer), b. 1864, ed, Guthe, Karl Eugen, 1866-1915, Hallock, William, 1857-1913, Lewis, E. Percival (Exum Percival), 1863-1925, Goodspeed, Arthur W. (Arthur Willis), b. 1860, Carman, Albert Pruden, b. 1861, McClung, Robert Kenning, 1874- · Philadelphia, P. Blakiston's Son & Co · leaf 514
is thusalong the paper and that of magnetic deflections is perpendicularto this. The result is an irregular curve, the ordinates of whichmeasure the deflection of the magnet at any instant of time aslocated on the time axis. This recording instrument may bearranged for either the declination or for… … Hoyri 2 569. Theories of Terrestrial Magnetism. The earliest theory advancedto account for the earths magnetism was that of Gilbert in his DeMagnete. He expressed his view briefly as follows: Magnus magnesipse est globus terrestris,—the earth itself is a great magnet. Biot in180S suggested that the…
Physics
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