A new and accurate method of finding a ship's position at sea, by projection on Mercator's chart ... The principles of the method being fully explained and illustrated by problems, examples, and plates, with rules for practice, and examples from actual observation. By Capt. Thomas H. Sumner.

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Title
A new and accurate method of finding a ship's position at sea, by projection on Mercator's chart ... The principles of the method being fully explained and illustrated by problems, examples, and plates, with rules for practice, and examples from actual observation. By Capt. Thomas H. Sumner.
Author
Sumner, Thomas H.
Canvas
Page 70
Publication
Boston,: T. Groom & co.,
1851.
Subject terms
Sumner's method

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"A new and accurate method of finding a ship's position at sea, by projection on Mercator's chart ... The principles of the method being fully explained and illustrated by problems, examples, and plates, with rules for practice, and examples from actual observation. By Capt. Thomas H. Sumner." In the digital collection Making of America Books. https://name.umdl.umich.edu/m/moa/aan0447.0001.001. University of Michigan Library Digital Collections. Accessed March 29, 2024.
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