Proposed supplemental appropriations for the Atomic Energy Commission, Tennessee Valley Authority, and Department of Defense, together with certain proposed provisions and increases in limitations pertaining to existing appropriations. Communication from the President of the United States transmitting proposed supplemental appropriations for the fiscal year 1951 in the amount of $17,978,247,000 for the Atomic Energy Commission, Tennessee Valley Authority, and Department of Defense, together with certain proposed provisions and increases in limitations pertaining to existing appropriations.