A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 21
acy, or area cov- ered, or to subservebetter the purpose forwhich the work is in-tended. There are numer-ous forms of thesecomplex figures, butonly three are usuallyemployed. The mostsimple form possiblefor connecting twopoints, as the termi-nals of an arc, is a chain of single triangles, as shown… … TEIAXGULATIOX FIGURES. 11 sum of the three measured angles of each triangle, less the sphericalexcess, must equal two right angles. If the greatest attainable accuracy is desired, Form III must beused. It consists of a chain of quadrilaterals with the diagonalsobserved as well as the sides. Form II…
Surveying
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
