—, —, Ganby's, xxix, 354.
—, —, Page's, xxxv, 253.f
—, —, E. M. Clarke's, xxxiii, 213.f
—, —, see farther under [Electro-Magnetic] and [Magneto-Electric.]
—, musical tones from, C. G. Page, xxxii, 396; xxxiii, 118; xlviii, 401.
—, cause of voltaic currents with, J. P. Emmet, xxvi, 23.f
—, native, in Rhode Island, iv, 285; v, 402.
[Magnetic] attraction and repulsion, law of, R. W. Fox, xxviii, 370.
— — — reciprocating motion of, J. Henry, xx, 340.f
— chart, of the U. States, E. Loomis, xxxiv, 290; xxxix, 41.