Reconnaissance of San Pedro Harbor, California / U.S. Coast Survey ; by the hydrographic party under the command of Lieut. Comdg. James Alden, U.S.N. Assistant

Relief shown by hachures. Depths shown by soundings. ; "The astronomical observations were made in 1852 by Geo. Davidson, Assist. U.S. Coast Survey. The sketch work of the shore and view were executed by W.B. McMurtrie." ; "Reduction for engraving by Frs. Herbst. Outlines & topography engraved by H.C. Evens ; view by S.V. Hunt ; lettering by S.E. Stull." ; "Electrotype copy no. 1 by G. Mathiot, U.S.C.S." ; Differs from other 1852 version: lacks "J No. 5." ; Includes sailing directions, note and iInset view "View of San Pedro, Pt. Fermin bearing W.N.W. (Compass) 4 miles."1:30,00