A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 46
the station, either in finding the station or inlocating a camp or obtaining supplies. It is desirable that thename of the trigonometric station be a short one. TEIANO ULA HON, 35 TRIANG ULA TION.INSTRUMENTS AND METHODS OF OBSERVATION. 600. Instruments for Measuring Angles. Instruments for… … parts of the graduation,.the size has been much reduced, until nowthe largest instruments used have circles about 20 inches (50 centi-metres) in diameter; and even these are being gradually replacedby instruments with circles as small as 13 inches (30 centimetres) 36 GEODESY. in diameter, tlie…
Surveying
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