A system of geometry and trigonometry, with a treatise on surveying; in which the principles of rectangular surveying, without plotting, are explained (1835)
Flint, Abel, 1765-1825, Gillet, George · Hartford, Belknap & Hamersley; New York, Cooke & Co. · leaf 53
To protract a field according to the preceding rules ispreferable to the method of doing it by parallel lines, thoughit may not be so easy to the learner at first. It is difficultto draw parallel lines with perfect accuracy, and a small de-viation from a true line may make considerable difl^erence… … SURVEriNG, 53 TO DRAW A PLOT OE THIS FIELD, ACCORDING TO THE PRE-CEDING RULES, Having drawn the side AB, according to the directions be-fore given for laying off the first course and distance, com-pare the first and second courses together, and they will befound to be both north and both east;…
Surveying
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