In closing our discussion of the monopolies in trade, there is an important point to be noted. In the lines of industry considered in the preceding chapter, the monopoly was easy of maintenance because it held full control of the source of production, or of some necessary channel through which commerce must pass. No gift of nature assists to maintain a monopoly in trade. It must be wholly artificial, and it relies for its strength simply on the adherence of its members to their agreement to maintain prices. Its degree of power can never be great, compared with monopolies which control the original sources of production; for if it is attempted to put up prices inordinately, competition will start up outside of the combination, or the consumer will be led to deal directly with the producer. Because of this weakness, the temptation is great for these monopolies to strengthen themselves in ways quite indefensible on any score. The alliance of trade monopolies with trusts, in order to strengthen themselves, we have already considered. But the trust which makes such an alliance must plead guilty to the charge of _discrimination_ as well as _monopoly_. It is bad enough to raise the prices of the necessaries of life, and force the whole community to pay the tax; but it is worse to add to this the crime of discrimination against certain persons in the community, at the instance of a minor monopoly. But the trade monopoly does not confine its sins to tempting the stronger monopoly to practise discriminations. It practises discrimination itself in some very ugly forms. A combination among manufacturers of railway car-springs, which wished to ruin an independent competitor, not only agreed with the American Steel Association that the independent company should be charged $10 per ton more for steel than the members of the combine, but raised a fund to be used as follows: When the independent company made a bid on a contract for springs, one of the members of the trust was authorized to underbid at a price which would incur a loss, which was to be paid for out of the fund. In this way the competing company was to be driven out of business. It is often argued that combinations to advance prices can never exist long, because of the premium which the advanced price puts upon the entrance to the field of new competitors; but the weapons which this trust used to ruin an old and strong competitor are even more effectual against a new-comer; and the knowledge that they are to meet such a warfare is apt to deter new competitors from entering the field. The boycott was once deemed rather a degrading weapon of warfare; but now the term has grown to be a familiar one in trade circles. Even the great railway companies do not scruple to use the boycott in fighting their battles. One might imagine that both the thing and the name filled a long felt want. VII. MONOPOLIES DEPENDING ON THE GOVERNMENT.