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William Gilbert of Colchester, physician of London, On the loadstone and magnetic bodies and on the great magnet the earth. A new physiology, demonstrated with many arguments and experiments .. (1893)

Gilbert, William, 1544-1603, Mottelay, Paul Fleury, b. 1841, tr, Wright, Edward, 1558?-1615 · New York, J. Wiley & sons · leaf 295

An illustration from William Gilbert of Colchester, physician of London, On the loadstone and magnetic bodies and on the great magnet the earth. A new physiology, demonstrated with many arguments and experiments .., 1893, leaf 295
a piece of iron wire three finger-widths long, resting on thepole A so that its middle lies over the pole. One of the endsturns toward C and will not rest in position toward B; yet, ina terrella that is flawless and even all over, it will be at rest on 238 WILLIAM GILBERT. the pole no matter toward… … their extremities D, and C, let pieces of iron wire be reared : atD (which is the region of greater force) the wire will be rearedmore near perpendicular than at C, the region of less force.Thus can we discern the stronger and more powerful part of aloadstone, else not recognizable by the senses.…

Magnetism

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