A treatise on land-surveying; comprising the theory developed from five elementary principles; and the practice with the chain alone, the compass, the transit, the theodolite, the plane table, &c. Illustrated by four hundred engravings, and a magnetic chart (1875)
Gillespie, W. M. (William Mitchell), 1816-1868 · New York, D. Appleton · leaf 312
even without these adjustments, whether of the sights orof the telescope, a survey could be made which would be per-fectly correct as to the relative position of its parts, however farthe line of sight might be from lying in the same vertical planeas the edge of the ruler, or even from being… … (452) Method of Radiation. This is the simplest, though notthe best, method of surveying with the Plane-table. It is especi-ally applicable to survey-ing a field, as in the figure.In it and the following fi-gures, the size of the Tableis much exaggerated. Setthe instrument at any conve-nient point,…
Surveying
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