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 76
ed necessary, but with a little experience iu this sort of PLANE SURVEYING 63 work the instrument man can direct the rod closely enough to thepoint B for all practical purposes. We then enter the notes inthe second line of the record shown above. Upon the left of the center, these operations are… … Fig. 51.reipiired distance and read the rod again, noting how much it dif-fers from N.5 feet, if any, and enter the final results in the notes. A third case is shown in Fig. 52, iu which the transverseslope is not uniform. The method of procedure is the same as inthe other cases, but the rod should…
Surveying
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