Estimate of appropriation submitted by the Commissioners of the District of Columbia. Communication from the President of the United States transmitting estimate of appropriation submitted by the Commissioners of the District of Columbia to pay a claim which has been settled by them under the provisions of the act entitled "An act authorizing the Commissioners of the District of Columbia to settle claims and suits against the District of Columbia," approved February 11, 1929 (45 Stat. 1160), as amended by the act approved June 5, 1930 (46 Stat. 500), amounting to $500, and which requires an appropriation for its payment.