Section, R.S. § 4843; [Feb. 9, 1900, ch. 13], [31 Stat. 7]; [Aug. 24, 1912, ch. 391, § 3], [37 Stat. 591]; Oct. 15, 1966, [Pub. L. 89–670, § 6(b)], [80 Stat. 938], related to admission to Saint Elizabeths Hospital of insane persons from the Army, Navy, Air Force, Marine Corps, and Coast Guard.