Whitney Dam, Tex. Letter from the Secretary of War. Transmitting a letter from the Chief of Engineers, United States Army, dated June 23, 1939, submitting an interim report, together with accompanying papers and illustrations, on survey of Brazos River and its tributaries, Tex. (Whitney Dam), authorized by the River and Harbor Act approved August 26, 1937, and the Flood Control Act approved August 28, 1937.