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 355
y; on the contrary, how delightful, how beneficial, howdivine! Seamen tossed by the waves and vexed with incessantstorms, while they cannot learn even from the heavenly lumi-naries aught as to where on earth they are, may with the great- 298 WILLIAM GILBERT. est ease gain comfort from an… … the inside arc of the quadrant, and the quadrant is turned roundat the centre of the instrument until that degree on the quad-rant touches the spiral line: then in the open space B, at thecentre of the quadrant, the latitude of the region on the pe-riphery of the globe is found by the linea…
Magnetism
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