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 62
CALCULATING TEE CONTENT. 47 it and partly out, giving and taking about equal quantities, so that the figurewhich these lines form shall be about equivalent to the curved figure. This Fig. 51. … Fig. 52. having been done, tbe equivalent straight-lined figure is reduced by the abovemethod. It is sometimes more convenient not to produce one of thesides of the figure, but to draw at one end of it, as at the point1 in Fig. 51, an indefinite line, usually a perpendicular, to a linejoining two…
Surveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
