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Action ok other Governments in Regard to such
Results of the Coast Survey Their Bearing upon
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accuracy ascertained astronomical Atlantic bars bay and harbor Cape changes channel Chesapeake bay Coast Survey cold bands Columbia river commerce committee connected currents dangers Delaware bay deposits depth determined direction distance earth employed error executed extended favor feet water Florida geodesy geodetic survey Gulf of Mexico Gulf-stream Hassler hydrographic sketches hydrographic survey important inlet instrument interest investigation Kent Island Key West labor latitude length less light-house Long Island sound longitude magnetic mariner means measured ments meridian methods miles navigation observations obtained ocean operations Pacific coast points position practical prelim PRELIMINARY CHARTS present primary triangulation PROF Professor Bache progress prosecution reefs regard river entrance rocks scale scientific Sea-coast secure sheets shoals shore shore-line sound stars stations stream Superintendent surface telegraph temperature theodolites tidal tides tion topographical triangulation Trinidad bay Troughton & Simms York zenith telescope