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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 50

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 50
Pig. 32. PLAKE SUEYEYIXG 37 tliereliy saving imuh time. AVLen the target is finally set, thelodnian reads tlie rt:d and calls ont the readinor to tLe observer,when within reasonable distance. The taroet rods are read en-tirely by the rodnian, and the readings are kept by him in a notebook for that… … =w= pj d 1^ ™,

Surveying

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