Email Record: Cowlitz River and tributaries, Washington. Letter from the Secretary of War transmitting a letter from the Chief of Engineers, United States Army, dated April 25, 1940, submitting a report, together with accompanying papers and an illustration, on a preliminary examination and survey of Cowlitz River and tributaries, Washington, authorized by Act of Congress approved June 13, 1934, and the Flood Control Act approved June 22, 1936.