Harbors of Captain's Island East and Captain's Island West. 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. Published in 1849. A.D. Bache, Superintendent. 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. Electrotype copy no. 2 by G. Mathiot, U.S.C.S. (with logo) U.S. Coast Survey Office.