A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 328
erring around toA B and B C from the third triangle. A convenient sized diagram is obtained by making A E = 10.Lines parallel to A E, A B, B C, and C D are drawn 0-1 inch apart,every tenth line heavy. To avoid confusing the diagram, only everyalternate line of those parallel to A E is continued… … the three sets of lines and numbers : e. g., distances, black; angles,red; elevations or corrections, blue. For correction on distances (Fig. 490), let the entire base AD 318 TOPOGRAPHY. Fio. 491.
Surveying
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