Note 393 — Chapter V · The Power of the States to Interfere with the Mails

This is the theory of the Webb-Kenyon Act. See my papers, “The Power of the States over Commodities Excluded by Congress from Interstate Commerce,” 24 Yale Law Journal, 567 (May, 1915), and “State Legislation under the Webb-Kenyon Act.” 28 Harvard Law Review, 225 (January, 1915).