Investigation of the national defense program. Part 39, Return of overseas surpluses; Maintenance of naval establishments; Canol project; Emergency housing program; Disposal of surplus plants; Renegotiation of war contracts, September 5, 6, 7, 9, 26, 27, 30; November 20, 21, 22, 25, 1946; and January 31, 1947 : hearings before a Special Committee Investigating the National Defense Program, United States Senate, Seventy-ninth Congress, second session pursuant to S. Res. 46 (80th Congress) (extending S. Res. 71--77th Congress), a resolution authorizing and directing an investigation of the national defense program