Section, act Aug. 9, 1937, ch. 570, § 1, 50 Stat. 592 , related to contracts for medical attention and service for employees. Pub. L. 89–554, § 8(a) , Sept. 6, 1966 , 80 Stat. 647 to 649, also repealed acts Jan. 12, 1927, ch. 27, 44 Stat. 957 ; Mar. 7, 1928, ch. 137, 45 Stat. 227 ; Mar. 4, 1929, ch. 705, § 1, 45 Stat. 1589 ; May 14, 1930, ch. 273, § 1, 46 Stat. 306 ; Feb. 14, 1931, ch. 187, § 1, 46 Stat. 1142 ; Apr. 22, 1932, ch. 125, § 1, 47 Stat. 114 ; Feb. 17, 1933, ch. 98, § 1, 47 Stat. 842 ; Mar. 2, 1934, ch. 38, § 1, 48 Stat. 380 ; May 9, 1935, ch. 101, § 1, 49 Stat. 197 , and June 22, 1936, ch. 691, § 1, 49 Stat. 1781 , which contained similar provisions. CFR Title Parts 10 903