Chart of the Farallones and entrance to the Bay of San Francisco, California by Cadwalader Ringgold, Commander, U.S. Navy. Assisted by Simon F. Blunt, Lieut. U.S. Navy, 1850. Constructed, projected and drawn by Fred. D. Stuart, hydrographer, late of the U.S. Ex. Ex. C.B. Graham, Lithr., Washington, D.C. Entered ... 1851, by Cadwalader Ringgold ... District of Columbia.
