Section, act July 1, 1944, ch. 373, title XIII, 1311, formerly title VII, 711, as added Feb. 28, 1948, ch. 83, 9(b), 62 Stat. 47; renumbered title VIII, 811, July 30, 1956, ch. 779, 3(b), 70 Stat. 721; renumbered title IX, 911, Sept. 4, 1964, Pub. L. 88–581, § 4(b), 78 Stat. 919; renumbered title X, 1011, Oct. 6, 1965, Pub. L. 89–239, § 3(b), 79 Stat. 931; renumbered title XI, 1111, Dec. 24, 1970, Pub. L. 91–572, § 6(b), 84 Stat. 1506; renumbered title XII, 1211, May 16, 1972, Pub. L. 92–294, § 3(b), 86 Stat. 137; renumbered title XIII, 1311, Nov. 16, 1973, Pub. L. 93–154, § 2(b)(2), 87 Stat. 604, provided for appointment to higher grades of Public Health Service officers for mental health and hospital construction activities.