A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 382
owing pages. 538. First Form of Field-Book. In this, the names of the pointsor stations, whose heights are demanded, are placed in the firstcolumn, and their heights, as finally ascertained, in reference tothe first point, in the last column. The heights above the starting-point are marked -f-, and… … is placed in the column of Eise ; when it is less, their differenceis a Fall. The following table represents the same observationsas the last figure, and their careful comparison will explain anyobscurities in either : STATIONS. DISTANCES. BACK-SIGHTS. FORE-SIGHTS. RISE. FALL. TOTALHEIGHTS. A BCDEF…
Surveying
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