Sections 21, 22 to 24, 26 to 28, 29, 30, 33 to 48, 50 to 52, 71 to 76 of this title and section 661 of title 43, referred to in subsec. (a), were in the original “this chapter”, meaning chapter 6 of title 32 of the Revised Statutes, consisting of R.S. §§ 2318 to 2352.

R.S. § 2337 derived from act May 10, 1872, ch. 152, § 15, 17 Stat. 96.

1960—Pub. L. 86–390 designated existing provisions as subsec. (a) and added subsec. (b).