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 192
ction rollers. Adjust-able in azimuth. Furnished with a number of eye-pieces, varying with the size ofthe instrument; the power ranging from 48 to 160. The diameter of the circle may reach 10 inches, and the distance between bear-ings, 25 inches. These instruments are made in different sizes, the… … No. 37f.MERIDIAN INSTRUMENT. With rectangular prismatic telescope, eye-piece at axis. 234-inch aperture,focal length, 33 inches. Price, $950.00. (See the opposite pagej No. 38. ALT-AZIMUTH INSTRUMENT. Circles 11 inches in diameter. Micrometer microscopes, reading to secondsdirect; with additional…
Surveying
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