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 78
Am. 0 A. 2 R. 29 P.The field may be platted from these measurements, if desired, but withmore liability to inaccuracy than in the first method, in which the sides aremeasured. The plat of the figure is three chains to one inch. The field-notes may be taken by writing the measurements on a sketch,as… … u LA ND-SUR VFTIXG. £ From 200 on 480 110F.S. to BH «=H From 280 <w 480 175F.S. fo D iTz. 10. Calculation. sq. lies. ABC = \ x 480 x 110 = 26400 ADC = \ x 480 x 175 = 42000 sq. chains 68400 Acres 0684 It i3 still easier to take the twotriangles together; multiplying thediagonal by the sum of the…
Surveying
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