Section, R.S. § 519; acts Feb. 26, 1925, ch. 339, § 3, 43 Stat. 983; Mar. 2, 1934, ch. 38, § 1, 48 Stat. 389; June 30, 1949, ch. 288, title I, § 103, 63 Stat. 380, required Administrator of General Services to furnish proper offices for use of Office of Education.