Surveying ; a manual of practical instruction in the art of plane surveying, including plotting, leveling, triangulation, line running, cross-sectioning, traversing, and other details of field work (1910)
American School of Correspondence, Phillips, Alfred Edward, 1863- [from old catalog] · Chicago, American school of correspondence · leaf 124
mpass, is S 85° E, its azimuth will evidently be the differencebetween 180° and 85°, or 95°. Since the second line B Cdeflects to the right by 31° 30, its azimuth will evidently be thesum of tlie angles 95° and 31° 30, or 12*5° .O. Since the thirdline C D deflects to the left 51° 0, its azimutli… … The same diagram may serve to illustrate the method ofdeducing the bearings of a series of lines from the deflectionangles. Since the bearing of the first Hue as given by the compassis S 85° E, and the second line deflects to the right 31° 30, it isevident that this second line decreases its…
Surveying
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