A treatise on surveying and navigation: uniting the theoretical, the practical, and the educational features of these subjects (1852)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst · leaf 88
heright hand toward theeast, and E in thedirection toward the west. The reason of this is explained by thenext figure. Suppose we wished to find the direction of a line from the centerof the compass to the object B. We set the compass, that isplace it horizontal on its staff or tripod, the needle… … 84 SURVEYING
Surveying · Navigation
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