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 58
r together as the case mayseem to require. Take a straight-edged piece of paper, and apply oneedge of it to the middle of the firstspace, and mark its length from oneend; apply the same edge to themiddle of the next space, bringingthe mark just made to one end, and making another mark at the end of… … 73. Third Method.—Instrumentally.tain instrumental operations on the plat. By performing cer- 74. Reduction of a many-sided figure to a single equivalenttriangle. Any plane figure bounded by straight lines may be re-duced to a single triangle, which shall have the same content. This can be done by…
Surveying
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