Relief shown by hachures. Depths shown by contours and soundings. Shows bottom types, buoys, and lighthouses. Includes information on tides, sailing directions, and 2 views of approaches to the harbor. "Reduction by J.M. Wampler, draughtsman. Views by J. Robertson. Engraving of topography &c. by F. Dankworth & O.A. Lawson, assisted by J.H. Young. Views by O.A. Lawson. Lettering by J. Knight & W. Smith. Printed by H. Benner."--Lower margin. "Harbor map no."--Upper left margin. "Electrotype Copy No. 1 by G. Mathiot U.S.C.S."-Upper right margin. Differs from another ed. of 1848 without printer's name in lower margin, and with text in upper center margin: "Presented to ... under the authority of an act of the Congress of the United States of June 3d, 1844 ..."