[506] 49 Stat. 1081, August 31, 1935, Sec. 2.
[507] 50 Stat. 121, May 1, 1937, Sec. 4 (e).
[508] 52 Stat. 631, June 8, 1938, as amended by 56 Stat. 248, April 29, 1942, Sec. 5.
[509] 48 Stat. 503, March 27, 1934, Sec. (a).
[510] 56 Stat. 176, March 27, 1942, Sec. 301.
[511] 48 Stat. 58, May 18, 1933, Sec. 5 (h).
[512] 52 Stat. 401, May 17, 1938, Sec. 6.
[513] 52 Stat 1255, June 30, 1938.
[514] 64 Stat. 149, May 10, 1950, Sec. 2.
[515] Id., Sec. 3 (a).