1972 - Pub. L. 92-403, Sec. 2, Aug. 22, 1972, 86 Stat. 619, added item 112b. 1966 - Pub. L. 89-497, Sec. 2, July 8, 1966, 80 Stat. 271, inserted ''slip laws; Treaties and Other International Acts Series;'' in item 113. 1951 - Act Oct. 31, 1951, ch. 655, Sec. 2(a), 65 Stat. 710, added items 106a and 106b. 1950 - Act Sept. 23, 1950, ch. 1001, Sec. 3, 64 Stat. 980, added item 112a.