Shows buoys with red and black ink.; Relief shown by hachures. Depths shown by soundings and shading.; "Issued in Apr. 1878 C.P. Patterson, superintendent."; In upper right margin: Electrotype copy no. 12 by G. Mathiot U.S.C.S.; Includes sailing directions, tables of tides, lighthouses, and bottom types, and 3 coastal views.; In upper left margin: No. 337.; In upper center margin: Plate no. 1184. 71 x 89 centimeters Scale 1:40,000 General Map Collection
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