Davies, Charles, 1798-1876 · New York, Cincinnati [etc.] American book company · leaf 206
n point in the boundary of apiece of land, so as to cut off, on either side of theline, a given portion of the field. Make a complete survey of the field, by the rules alreadygiven. Let us take, as an example, the field whose area iscomputed in Ex. 1, Art. 140. That field contains 105 ^. 2 R.33 P.,… … Fig. 112. It is seen, by exam-ining the field, that thedivision line will proba-bly terminate on thecourse CD. Therefore,draw a line from A toC, which we will callthe first closing line. The bearings andlengths of the courses AB, BC, are always known, and in thepresent example are found in the…
Surveying
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