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Elements of chart making (1916)

U.S. Coast and Geodetic Survey, Jones, Ernest Lester, 1876-1929 · Washington : Govt. Print. Off. · leaf 35

An illustration from Elements of chart making, 1916, leaf 35
Fig. 4.—ASTRONOMIC TRANSIT, USED IN THE DETERMINATION OF TIME AND LONGITUDE. … Special Publication No. 38

Charts, diagrams, etc

Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.

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