In order to provide credit that is not available from private money markets, or to supplement funds from private lenders, including loans guaranteed by the Secretary pursuant to section 1481 of this title, all funds that are now or hereafter a part of the revolving fund authorized by the Act of June 18, 1934 (48 Stat. 986) [25 U.S.C. 461 et seq.], the Act of June 26, 1936 (49 Stat. 1967) [25 U.S.C