[536] House Concurrent Resolution No. 24, August 21, 1937, 50 Stat. 1113.

[537] 53 Stat. 811, June 7, 1939, Sec. 7 (a).

[538] 61 Stat. 24, March 29, 1947, Sec. 1 (c).

[539] 67 Stat. 408, August 7, 1953, Sec. 4.

[540] Id., Sec. 9 (a) (6).

[541] 64 Stat. 435, August 10, 1950, Sec. 3 (b).

[542] 52 Stat. 436, May 23, 1938, Secs. 1, 2.

[543] Id.

[544] 56 Stat. 351, June 11, 1942.

[545] Id., Sec. 2.