Sec. 4, par. 7, added by act of May 9, 1918 (40 Stat. 542).......
Sec. 4, par. 7, added by act of May 9, 1918 (40 Stat. 543)...
Sec. 4, par. 12, added by act of May 9, 1918 (40 Stat. 545)..
Sec. 4, par. 13, added by act of May 9, 1918 (40 Stat. 546)..
Sec. 1 (34 Stat. 621)..