Location of shoals and shallows shown by isolines in the vicinity of the Gulf Coast of Florida.
Includes "Sub-sketch of Cedar Keys", scale 1:300,000.
"No. 19" outside upper left margin.
"U.S. Coast Survey, A.D. Bache, superintendent" at head of title.
Removed from: United States Coast Survey, Annual report of the superintendent of the Coast Survey (1858).