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 212
rtemperature in different altitudes; but unless very great accuracy is required, it isnot necessary to consider these. For ordinary purposes, and in practical work,such as is called for by this method of measuring, these corrections may be safelyomitted. Should they be required, however, for… … Prices from $12 to $60, according to size and altitude scale. Aneroid barometers are made expressly for us by the best makers, in Germansilver or nickel plated cases, truly compensated for temperature, with or withoutthermometers, ranging from 5,000 feet to 20,000 feet, size, If, 2\ and 5…
Surveying
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