Boston Public Library copy imperfect: lacking north sheet showing Cape Cod to Cape Ann.
Depths shown by gradients, soundings, and isolines.
Includes tide table and buoys note.
"Entered according to Act of Congress in the year 1856 by C.J & F.S. Copley, in the Clerks office, of the district court, of the Southern district of New York."
Logo at head of title: Hydrographic Office, New York.
Advertisement for Riggs & Brother pasted above title.
Publisher's advertisement pasted on verso, labeling chart Montauk to Chatham.