[241] 50 Stat. 211, May 28, 1937.

[242] 54 Stat. 676, June 21, 1940, Sec. 11.

[243] 54 Stat. 885, September 16, 1940, Sec. 8 (i). Contrast the relatively simple and clear-cut reference to the two groups with the variety of “Communist organizations” defined in the Internal Security and Communist Control Acts mentioned above.

[244] 55 Stat. 808, December 17, 1941, Secs. 1, 3.

[245] Id.

[246] 67 Stat. 408, August 7, 1953, Sec. 7 (a).

[247] 57 Stat. 163, June 25, 1943, Sec. 8.

[248] Id., Sec. 3, 5. President Roosevelt, in the absence of enabling legislation, had previously resorted to plant seizure in such cases.

[249] Id., Sec. 4.

[250] Id., Sec. 206.