Response or Comment
In the case of International Text-book Company v. Pigg, Advance Sheets May 1, 1910 (30 Sup. Ct. 481) the Supreme Court of the United States, decided April 4, 1910, that a "corporation engaged in imparting instruction by correspondence, whose business involves the solicitation of students in other states by local agents, who are to collect and forward to the home office the tuition fees, and the systematic intercourse between the corporation and its scholars and agents, wherever situated, and the transportation of the needful books, apparatus, and papers," is engaged in interstate commerce, and a state statute which makes the filing of a statement of the financial condition of such a corporation a prerequisite to the right to do such business in such way in the state and to maintain a suit in the state court upon a contract connected therewith, is an unconstitutional interference with interstate commerce.
Wilgus, Horace LaFayette. "What is Interstate Commerce?" Mich. L. Rev. 8 (1910): 662-4.