Beans, E. W. [from old catalog] · Philadelphia, J. W. Moore · leaf 51
g cases, let stakes bedriven into the ground in theline C D, equidistant fromeach other (say 40 perches.)It is evident that the devia-tion of the random line C Dfrom parallelism with A B isequal to the sum of the dis-tances A C and B D, or15+24 = 40 feet. There-i fore, in this case we mustk take… … A MANUAL FOR SURVEYORS. 47 AF = 9.7 The 1st offset nl ml 5.3 9.7 2d, do. n* m* = 4.4 9.7 3d, do. nz m3 = 14.1 9.7 1th, do. n* m4 = 23.8 B<7 1.2 BD 25 25 proof. We cannot subtract 9.7 from 5.3 the first offset,which shows the random and true line intersectbetween the points, the difference 4.4 is…
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