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Monthly Catalog 1895-1976

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    Washington, Anacortes to Skagit Bay, topography by Coast and Geodetic Survey to 1940, supplemented by surveys by Geological Survey to 1940, hydrography by Coast and Geodetic Survey to 1940, supplemented by surveys in dredged channels by U. S. Engineers in 1944; no. 6376. Scale 1:25,000.