from a trigonometrical survey under the direction of F.R. Hassler, Superintendent of the Survey of the Coast of the United States ; triangulation by J. Ferguson assistant ; topography by C.M. Eakin assistant ; hydrography by the party under the command of Lieutenant G.S. Blake U.S. Navy ; A.D. Bache, Superintendent
Covers Captain Harbor and adjacent waters. The harbor is between the islands and the mainland of Greenwich, Conn., immediately east of the New York state line. Captain's Island East is now called Little Captain Island. Captain's Island West is now called Great Captain Island.
Depths shown by shading and soundings.
Relief shown by hachures.
"Topography reduced by W. Luce, draughtsman ; hydrography reduced by W.C. Barney, Lt. U.S. Navy ; Hills by A. Rolle, title by W. Smith, and the rest by S.T. Pettit."--Lower margin.
"Buoys and Lt. Ho. up to Jan. 1860."
"Published in 1849."
Includes sailing directions and information on tides.
"Electrotype copy no. 4 by G. Mathiot, U.S.C.S."--Upper right margin.
Also available on the Internet through the American Geographical Society Library Digital Map Collection.