Hempstead Harbor, Long Island: from a trigonometrical survey under the direction of F.R. Hassler and A.D. Bache, superintendents of the Survey of the Coast of the United States 1859

Nautical chart showing seafloor terrain. Relief shown by hachures. Depths shown by bathymetric tints and soundings (in feet and fathoms). “Triangulation by E. Blunt Assist.” “Topography by F.H. Gerdes Assistant.” “Hydrography by the party under the command of Lieut. Comdg. T.B. Huger U.S.N. Asst.” “A.D. Bache Superintendent.” “Verified [by] W.R. Palmer Capt. Topl. Engrs. Asst. C.S. in charge of office.” Includes notes, key, seal, and tidal information. “No. 8”–Upper left margin.