Nautical charts. Galveston Bay and approaches, Tex., Gulf Coast, topography by Coast and Geodetic Survey in 1934, supplemented by surveys by U. S. Geological Survey in 1929, hydrography by Coast and Geodetic Survey in 1934 and 1937, supplemented by surveys in dredged channels by U. S. Engineers to 1939; chart 1282. Scale 1:80,000.