founded upon a trigonometrical survey under the direction of F.R. Hassler, superintendent of the Survey of the Coast of the United States ; triangulation by James Ferguson and Edmund Blunt, assistants ; the hydrography under the direction of Thomas R. Gedney, lieutenant U.S. Navy ; the topography by C. Renard and T.A. Jenkins assists.
Relief shown by hachures. Depths shown by gradient tints and soundings.
Sheet no. 1 verified by C.M. Eakin. Sheets 5 & 6 verified by Lt. A.A. Humphreys.
Prime meridian: New York City Hall.
Includes text, table of currents, notes, 4 coastal views and 2 views of Sandy Hook Light.