Hinks, Arthur R. (Arthur Robert), 1873-1945 · Cambridge : University press · leaf 150
5. Watkin Clinometer. 6. Interior of Clinometer. Instruments for Compass Sketching. COMPASS AND PLANE TABLE SKETCHING 105 local attraction at the first point, it will probably be differentat the second, and the error will be detected. These remarks agply to strictly local attractions, such asare…
Maps · Surveying
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