A complete treatise on practical land-surveying, in seven parts; (1839)
Nesbit, A[nthony], 1778-1859. [from old catalog] · London, Longman, Orme, Browne, Green, and Longmans; [etc., etc.] · leaf 56
Cross-Staff is sometimes thought incommodious, a smallpocket-cross may be so contrived as to be readily fixed, upon occasion, to theOffset-staff. This may be most expeditiously accomplished by means of a holemade through the cross, admitting the top of the staff, to the eighth link,counting from… … Part II) LAND-SURVEYING. 35 THE COMPASS. The Compass is an instrument used by surveyors, to pointout the range or direction of lines; and also to shew the bear-ings of objects. The circumference of the card of the compasscontains 360°, and is divided into thirty-two equal parts, calledPoints, each…
Surveying
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