Requiring information vs. regulating business

It is a mistake to suppose that the requiring of information concerning the business methods of such corporations, as shown in its accounts, is a regulation of business not within the jurisdiction of the Commission ... The object of requiring such accounts to be kept in a uniform way, and to be open to the inspection of the Commission, is not to enable it to regulate the affairs of the corporations not within its jurisdiction, but to be informed concerning the business methods of the corporations subject to the act, that it may properly regulate such matters as are really within its jurisdiction. Further, the requiring of information concerning a business is not regulation of that business.