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Surveying and tables (1903)

Wentworth, G. A. (George Albert), 1835-1906 · Boston, Ginn · leaf 73

An illustration from Surveying and tables, 1903, leaf 73
ly. Another method is as follows:Draw MN (Fig. 42) to represent ameridian. Let the point A in thisline be taken as the first station inthe rearranged field notes of page61. With the circular protractormark off each of the bearings as b, c,d, e, f, and a. Draw AB to scalethrough b. With triangle and… … EXERCISE VI Find the areas of the following and make a plot of each.In 3 and 7, detours were made on account of obstructions(p. 62). The notes of the detours are written in braces. 12 3 St a. Bearings DlST. 1 S. 75° E. 6.00 2 S. 15°E. 4.00 3 S. 75° W. 6.93 4 N. 45°E. 5.00 5 N. 45° W. 5.19* Sta.…

Surveying

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