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Keywords: COLLIMATION
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Journal Articles
Minutes of the Proceedings of the Institution of Civil Engineers (1920) 210 (1920): 327–348.
Published: 01 January 1920
... :- ( l ) Errors due to inaccuracy in the plotted length of the base line AB. (2) Errors clue totheinaccuratemeasurement of thehorizontalangles which fix thedirections of the photographs with reference to the btme line, Papers.] SURVPEHYOITNOGG. RAPHIC 325 (3) Errorsduetotheline of collimation...
Journal Articles
Minutes of the Proceedings of the Institution of Civil Engineers (1880) 59 (1880): 278–281.
Published: 01 January 1880
...E H COURTNEY REVERSIBLE LEVELS INSTRUMENTS LEVELLING TELESCOPES COLLIMATION INSTRUMENTATION IMPROVEMENT MODIFICATION © Thomas Telford and ICE 1880 (Paper No. 1659.) On Gushing s Reversible Level. By EDWARHDENRYCOURTNEMY,ajor R.E. EVERpYractical engineer is aware...

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