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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 113

An illustration from 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, leaf 113
y^-X m … F,g. 72. between the standards: but for city work, triaiigulatioii, etc., thecompass is dispensed witli. PLANE SL^RVEYIXG lo:> For iiRasuring vertical angles, the transit is fitted with avertii-al arc or circle divided usually to one-half degrees, and

Surveying

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