Manual of modern surveying instruments and their uses .. (1893)
Lietz, firm, math. instr. makers, San Francisco. (1893. The A. Lietz company) [from old catalog] · [San Francisco] The Company · leaf 201
having two astronomical eye-pieces.Verniers reading to 10 seconds. Measures angles from o to 2880. Prismatic eye-piece.Three pairs of colored shades. Complete with brass stand and lamp for night observation. Price, $220.00. These REFLECTING CIRCLES and SEXTANTS are made in great variety as to… … No. 44. This very useful instrument for obtaining areas is so wellknown to the engineer that it need not be described in particu-lar. A theoretical discussion of the principles underlying itsoperation will be found in almost any handbook on higher sur-veying. Instructions how to use it are…
Surveying
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