Section, act June 14, 1930, ch. 488, § 4(b), (c), 46 Stat. 587; 1939 Reorg. Plan No. I, §§ 201, 205, eff. July 1, 1939, 4 F.R. 2728, 53 Stat. 1424, related to studies and investigations by Surgeon General of the Public Health Service. See section 242 of Title 42, The Public Health and Welfare.