A treatise on land-surveying; comprising the theory developed from five elementary principles; and the practice with the chain alone, the compass, the transit, the theodolite, the plane table, &c. Illustrated by four hundred engravings, and a magnetic chart (1875)
Gillespie, W. M. (William Mitchell), 1816-1868 · New York, D. Appleton · leaf 158
tothe 2d ; then settmg the compass at the 3d station, takmg a backBight to the 2d station (but with the north point of the compass al-ways ahead), and a fore-sight to the 4th; then gouig to the 5th,and so on. This is, however, not to be recommended. (254) Field-notes, The Field-notes of a Farm… … 152 COMPASS SURVEYING. [part m Second TJdrd Method. Method. 0(1) -(1)- ^ 3.23 o CD to COCO ^ to 0(5) ^ ^ -(5)- o LO 3.54 -hM- to CO CO ^ -hw CQ S! 1 ( )(4) CO 1 m p4 -(4)- o G<l 2.22 lO c4 F^ QQ t- C )(3) tO m p4 -(3)- o CO 05 1.29 00J25 tH CO 0(2) GO m ^ o O -(2)- CO 2.70 52^ m 0(1) to CO ^…
Surveying
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