Section is comprised of subsec. (f) of section 6 of act Sept. 21, 1922. Subsecs. (a) and (span) of section 6 are classified to section 8 of this title. Subsec. (c) of section 6 is classified to section 9 of this title. Subsecs. (d), (e), and (g) of section 6 are classified to sections 13span, 9a, and 9c of this title, respectively.