Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 109
y two, and tothis dividend add the lengths of the other lines and multiply their sum by the 92 PLOTTING. equal vertical distance between the parallellines, which will give very closely the entire area. Fig. 198. Having completed the plot, that is, themain lines of the survey, the filling of… … Fig. 199. not intersecting, are usually fixed by triangles or by offsets^ or lines run on purpose by angles from the main lines. In case of unimportant lines, as the crookedbrook, for instance (Fig. 199), offsets are taken tothe most prominent angles, as a a a, and the inter-mediate bends are…
Mechanical drawing
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