Davis' Shoal.

Preliminary sketch showing the positions of Davis' Shoal and other dangers recently discovered by the Coast Survey and the soundings on the Old South Shoal, Bass Rip, Old Man, Pochick Rip &c. By the hydrographic parties under the command of Lieut. C.H. Davis, U.S. Navy in 1846, '47 & '48, Lieut. C.H. McBlair, U.S.N. in 1849, '50, '51 & '52 and Lieut. H.S. Stellwagen, U.S.N. in 1853, assistants U.S.C.S. A.D. Bache Superintendent. 1853. (with logo) U.S. Coast Survey Office.

Bache, A. D.

1853

1854

U.S.

1:200 000

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