Letter from the Secretary of War transmitting a letter from the Chief of Engineers, United States Army, dated April 8, 1946, submitting a report, together with accompanying papers and an illustration on a review of report on the Ohio and Lower Mississippi Rivers, with a view to modifying the plans for flood walls and works for the protection of the City of Cincinnati, Ohio, and a preliminary examination and survey of Mill Creek Valley, Ohio, requested by a resolution of the Committee on Flood Control, House of Representatives, adopted on July 28, 1937, and authorized by the Flood Control Act approved on August 28, 1937.