Supplemental estimates of appropriation and public debt authorization for various agencies in the executive branch and the District of Columbia. Communication from the President of the United States transmitting supplemental estimates of appropriation for the fiscal year 1951 involving an increase of $308,874,294 and public debt authorization in the amount of $50,000,000 for various agencies in the executive branch and the District of Columbia, all in the form of amendments to the Budget for said fiscal year.