A treatise on land-surveying; comprising the theory developed from five elementary principles; and the practice with the chain alone, the compass, the transit, the theodolite, the plane table, &c. Illustrated by four hundred engravings, and a magnetic chart (1875)
Gillespie, W. M. (William Mitchell), 1816-1868 · New York, D. Appleton · leaf 60
8^ g= 5 t^ I 1* a. of the final triangle, the numbers should be continued from the 54 FUXDAMEXTAL OPERATIONS. [part i other angle of the base, as is sho^n in Fig. 45. In it only theintersections are marked * (83) It is sometimes more convenient, not to produce one ofthe sides of the figure, but to…
Surveying
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