Geological Survey (U.S.), Topographic Branch. prepared for the Department of State, by the Topographic Branch, U.S. Geological Survey. Also shows railways in Japan, Korea, northeastern Vietnam,... The Branch.
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2. Asia
United States, Hydrographic Office. From British and Japanese surveys to 1906. Depths shown by soundings and tints; relief by contours and spot heights. 1940 variation compasses. Tide... U.S. Navy Hydrographic Office,.
3. Asia _ China
United States, Hydrographic Office. From surveys by the Hai Ho Conservatory Commision between 1905 and 1930 ; Depths on the bar, inside the 12 ft. curve, are from the 1921 Report of t... U.S. Navy Hydrographic Office,.
4. Asia
United States, Hydrographic Office. From Chinese Government surveys to 1931 and Japanese Government surveys to 1915. Depths shown by soundings and tints; relief by contours and spot h... U.S. Navy Hydrographic Office.
United States, Hydrographic Office. Compiled from information to 1936. Depths shown by soundings and tints; relief by contours and spot heights. 1935 variation compass. Shows drainage... U.S. Navy Hydrographic Office,.