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 47
e reading will be 1.457 as is shownin Fiir. 2U. If reading to the nearest 100th, the reading will beI.-IO. This is because the 7 naturally l)rings the zero .002 abovethe line of graduation on the rod, therefore, the zero of the vernieris .002 nearer the ti than the 5, hence, the reading is as… … Fig. 29. PLANE SrRVEYING 35 rod reading is 1.45. Therefore, in all readings with the Phila-delphia rod, read the thousandths to the nearest half hundredth.This is trae whether or not the lines coincide. These readings apply only to the face of the rod or to 6i- feet.When the rod is extended to 12…
Surveying
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