Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 560
and from B to the right perpendicularly set off2.83 chains, wliich gives position of Station 3, join 2 and 3: and so pro-ceed setting off North latitudes upwards, and South downwards, East Fig. 29. TOrOGRAPHICAL DRAWING. 3G1 departures perpendicularly to the right, and West perpendicularly to… … Fis 30. Tlie advantages of this method of plotting are ^^^^^^its accuracy, rapidity, the impossibility of an er-ror in one point affecting the others, and the cer-tainty of coming together. The above explains the method of plotting themain lines of the survey; the filling in is frompoints…
