Email Record: Thirty-first report on lend-lease operations. Message from the President of the United States transmitting the thirty-first report on lend-lease operations, for the period ending March 31, 1950, furnished in accordance with section 5, subsection (b) of the Act of March 11, 1941 (55 Stat. 32; 22 U. S. C. Sec. 414 (b)).