United States Coast SurveyShows 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 centimetersJPEGUMN_ALMA:9914745140001701engUnited States Coast Survey (Washington, D.C)PublicBoston Harbor, MassachusettsMaps1881University of Minnesota