Plate IV - The first triangulation work of the United States Coast Survey.
In: Papers on various subjects connected with the survey of the coast of the
United States" by Ferdinand Hassler. Communicated March 3, 1820. Published in
:Transactions of the American Philosophical Society, vol. 2, n. ser. 1825. Pp.
232-420. Library Call Number QB281.2 .H28 1825.
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