Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 555
downward and northward. A magnetic needle thustends to place itself sothat its axis points down-ward and to the magneticpole of the earth. Theangle which the axis ofa freely suspended mag-netic needle makes withthe horizontal plane iscalled the inclination ordip of the needle. Fig.418 represents a… … Fig. 418. some astronomical object, e.g.levelled by the spirit level B. The line passing in an easterly and westerly direction INTENSITY. 535
Physics
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