Elements of surveying and navigation : with a description of the instruments and the necessary tables (1847)
Davies, Charles, 1798-1876 · New York : A.S. Barnes & Co. · leaf 84
evensurface, we should refer the whole toa horizontal plane, and take for themeasure of the area that part of theplane which is included between thebounding lines AB, BC, CD, DA. In estimating land in this manner, the sum of the areasof all the parts into which a tract may be divided, is equalto… … 80 ELEMENTS OF SURVEYING. 104. The unit of a quantity is one of the equal parts ofwhich the quantity is composed {Arilh. In. VI). Thus, aJine of three feet in length is made up of three single feet,and of this line, 1 foot is the unit. The unit of a line maybe 1 foot, 1 yard, 1 rod, 1 chain, or any…
Surveying · Navigation
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