Ouachita River and tributaries, Arkansas and Louisiana. Letter from the Secretary of War transmitting pursuant to section 1 of the River and Harbor Act approved January 21, 1927, and section 10 of the Flood Control Act approved May 15, 1928, a letter from the Chief of Engineers, United States Army, dated December 6, 1933, submitting a report, together with accompanying papers and illustrations, containing a general plan for the improvement of the Ouachita River and tributaries, Arkansas and Louisiana, for the purposes of navigation and efficient development of water power, the control of floods, and the needs of irrigation.