=Federal Anti-trust Legislation.=--The commerce clause of the Constitution has also furnished the authority for some important congressional legislation against what are popularly known as "trusts," that is, combinations of corporations or business associations formed to avoid the wastes of competition and to secure economy of management. But the control of the supply of a commodity means the elimination of competition and usually the maintenance of high rates to the injury of consumers. For a long time the greater part of the business of the country was conducted by individuals, companies, or corporations, and the advantages of competition were preserved to the public, but in the course of the economic development of the country, corporations began to consolidate for the reasons stated, with the result that the supply of many commodities came to be controlled by single combinations. At first the states undertook to deal with the problem by passing anti-"trust" laws, but the business of so many of the more powerful organizations was interstate in character that state legislation was inadequate to deal with them. _The Sherman Anti-"trust" Law._--Finally, in obedience to a widespread popular demand, Congress took action in 1890 by passing what is popularly known as the Sherman anti-"trust" act to protect trade and commerce among the states against unlawful restraint and monopolies. This act declared that every contract, combination in the form of trust or otherwise, or conspiracy in restraint of trade or commerce among the states or with foreign nations was illegal, and it prescribed appropriate penalties for violations thereof. This law, however, applies only to "trusts" which are in restraint of trade among the states or with foreign nations. It has no application to those whose activities are confined entirely within the boundaries of a single state; with such "trusts" the states alone have the power to deal. In pursuance of the act of 1890, prosecutions have been instituted in the federal courts against a large number of "trusts," and some of them have been broken up, but the larger number have escaped. In 1911, for example, the Supreme Court decided that the Standard Oil and tobacco "trusts" were illegal, and their dissolution was decreed. _The Clayton Anti-"trust" Act._--In 1914 Congress passed another important act directed against combinations in restraint of trade. In brief, it prohibits price discriminations among purchasers, exclusive trade agreements between manufacturers and retailers, the holding of the stock of one corporation by another, and interlocking directorates. Like the other anti-"trust" acts it applies, of course, only to persons or corporations engaged in interstate commerce or trade. To enforce the act a _federal trade commission_ was created. It consists of five members appointed by the President, at a salary of $10,000 each.