World on Mercator's Projection - Nautical Chart, 1823 Historical Map Print Size:44in x 39in and the east-west position of

and the east-west position of a ship was calculated using a variety of methods including astronomical observations (comparison of the time on ship of a predictable astronomical event with the time it would have been visible at a prime meridian) and maritime clocks (the use of two clocks

[Plan of Boston neck]

Small male figure in profile view whose face is hidden by his upraised arm holding a cup

prince du sang - French

Sullivan's march from Easton to the Senaca & Cayuga countries

World on Mercator's Projection - Nautical Chart, 1823 Historical Map Print Size:44in x 39in and the east-west position ofMade to order print of World on Mercator's Projection from Tanner's 1823 American Atlas. A historical map reproduction for wall art, offices, studies, and collectors.