A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 349
most, turn it to the left. The areacovered by Class II is shown shaded in the figure. * United States Coast and Geodetic Survey Report, 1880, p. 182. 338 TOPOGRAPny. Class III. When the point sought falls without the great circleand within the sector of either angle of the great triangle, the… … right of the intersection of the other two, turn the table to the left;and if to the left, turn to the right. In case the point sought falls on the range of any two of thepoints and the table is deflected from true position, the lines fromthe two points will be parallel, intersected by a line from…
Surveying
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