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 134
city. 2. Its accuracy of pointing, being furnished with a telescope which is accu-rately set on the suns disk. 3. In its providing that all angles be set off on the vertical and horizontallimbs of the transit, thus eliminating the eccentricity and other inaccuracies usuallyfound in attachment… … SAEGMULLER SOLAR ATTACHMENT. This instrument may be had in ALUMINIUM, which gives that lightnessparticularly desirable in an attachment of this character. The illustration represents the improved Saegmiiller Solar Attachment as nowmade. It consists essentially of a small telescope and level, the…
Surveying
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