Wentworth, G. A. (George Albert), 1835-1906 · Boston, Ginn · leaf 67
departure of any course may be found by means of atable of natural sines and cosines. They may be found also 58 SURVEYING from the Traverse Table, which is merely the tabulated resultsof the foregoing method for given courses. Field Notes. The field notes are kept in a book providedfor the purpose.… … 1 N. 20° E. 8.66 2 S. 70° E. 5.00 3 S. 10° E. 10.00 4 N. 70° W. 10.00 Fig. 39 To obtain the field notes, say of fieldABCD (Fig. .30), place the compassat A, the first station, and take thebearing of AB (p. 12); suppose it tobe N. 20° E. Write the result inD the^cond column of the field…
Surveying
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