We have finally to consider the monopolies carried on directly by the government. The carriage of the mails is the most important monopoly carried on by the government, and we may find some facts of interest by enquiring the reasons why it is for the public welfare that it should be so conducted rather than by private enterprise. In the first place, if it were left to private enterprise to furnish us with postal facilities, the postal service would be much more limited than now; many places of small importance being left without postal facilities or charged a much higher rate for service than now. On the other hand--and this is an important point--there would, perhaps, be in and between the large cities competition between different companies; in which case there would be duplicate sets of postal facilities, including buildings, mail-boxes, furniture, and employees of every grade. It is plain that all this would be a waste. One set of facilities is better for the public than two or three or more, and is ample to carry all the mails. To put another set of men at the work that others are already able to do, is to waste just so much of the working force of the world, as well as the capital necessary to furnish tools and buildings for its use. The matter of rates, too, would vary with the competition. One could never be sure what his postage bill for the coming year was to be. The receipts of the companies would be uncertain, and they would be obliged to pay a high rate of interest on the capital invested in their plant, thus making it necessary for them to charge high rates for their service. The intense competition between rival companies would lead to the bankruptcy of the weaker, and the final result would be the establishment of a single corporation in the control of the whole system. Rates would then be put up to the point where the greatest profit would accrue to the corporation. Under the existing system, then, we save in cost of service over competing systems under private direction, in that the existing facilities are all made use of. There is no waste by setting two men to do the work of one, or by renting two offices to do the business which one could accommodate, neither is any energy wasted in soliciting business. The capital invested by the government in its plant for carrying on the postal service would bear interest, if the money were borrowed, of not more than two or three per cent. But if a private company borrowed money to carry a similar business, they would have to pay five to seven per cent., which they would have to make up for by charging a higher rate of postage. Other monopolies which have been carried on by the government are the business of transportation, and the provision of roads, bridges, and canals therefor; monopolies in mining; and in the case of municipal governments, as already noted, the supply of water, gas, and electric service, and street railway transportation. VIII.