Sec. 148b. Repealed. Oct. 10, 1940, ch. 851, Sec. 4, 54 Stat. 1111. Section, act Apr. 6, 1937, ch. 69, Sec. 3, as added May 9, 1938, ch. 192, 52 Stat. 344, related to procurement of materials and equipment for the control of insect pests and plant diseases. See section 6b(a) of Title 41, Public Contracts.