A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 343
was the method most employed inordinary surveys. With a great many points to intersect from a station, it is neces-sary to designate the point to which the different lines are drawnfrom the first station; to do this, place the name of the point in arectangle, one side of which coincides with the… … the points must be accessible. Let A B (Fig. 498) be the measureddistance. Lay it off on tlie paper as a h. Set the table up at B,and turn it till the line b a on the paper coincides with B A on the METHODS OF WOEK. 333 r-v-S ground, as in the Method of Progression. Then sight to C, anddraw an…
Surveying
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