Sketch A nʿ5 showing proposed site for a light house on Sow and Pigs Reefs ;Authorized by act of Congress Sept. 28th. 1850 re-enacte March 3rd. 1853 ; Topography by H.L. Whiting ; Hidrography by the Party under the command of lieut. M. Woodhull; A.D. Bache; U.S. Coast survey; Redd. Drng. by E. Freyhold; Eng. by W. Smith & App. H.C. Evens ;
