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BASELINE & TREVERSE MEASUREMENTS
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Coast-Geodetic-Survey
Geodesy
Triangulation
Baseline & Treverse Measurements
Geodesy
Measuring baseline with wooden rods.French expedition to Peru
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Irish Ordinance Survey baseline.First to use bi-metallic compensating principal for base line measurement
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Use of odometer for measuring distances
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Land surveyor using odometer in United States.A private county surveyor
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Coast Survey party measuring Key Largo Base.Base Line party of Alexander Dallas Bache
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Coast Survey party measuring Epping Plains Base.The last base line measured by Bache.Base Line party of Alexander Dallas Bache
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Coast Survey party measuring Epping Plains Base.The last base line measured by Bache.Base Line party of Alexander Dallas Bache
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Graded road made to measure Epping Plains Base.Base Line party of Alexander Dallas Bache
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Yolo Buggy used to transport and shade base measuring instruments.Yolo Base Line, one of the most accurate measured in the Nineteenth Century.Base Line party of George Davidson
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Yolo Buggy with George Davidson.Base Line party of George Davidson.The last time such buggies were used was in 1962
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Army surveyor with odometer carriage.Survey of public lands.Odometer worked fairly well on flat ground
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Shelton 100-meter comparator -- Making contact.William Bowie on left
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At work with No. 17.William Bowie in center with white hat
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Shelton 100-meter comparator
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Running levels along the Stanfield Base.Base line and astro party of C. V. Hodgson
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Measuring base with Invar tape.Tape underway.Base line and astro party of C. V. Hodgson
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Off to measure a base with Invar tape.Party of C. G. Quillian
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Time and tide waits for no man.Base line measurement in southeast Alaska.Party of C. G. Quillian
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It sure is tough to stay dry with the tide coming in.Base line measurement in southeast Alaska.Party of C. G. Quillian
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Measuring the Pasadena Base.Measured at accuracy of at least 1 part in 5 million.Measured accurately to help Albert Michelson determine velocity of light.Base line party of Clement L. Garner
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