We will next consider the monopolies discussed in Chapter III. It seems too plain to need proof that our mines and quarries are certain to have a steady increase in value as we use up the easily worked surface deposits and have to dig deeper shafts and develop the poorer deposits to supply the demand. In the case of any metals or minerals of which the deposits are so abundant, easily worked, and widely scattered, that the number of evenly matched competitors is great enough to ensure steady competition, the public will get the benefit of the especial gift of Nature, and its owner can receive little more than an ordinary return for his labor and capital. But, as we have already amply shown, in the production of a great number of minerals and metals competition has been killed, or is heavily handicapped by the vast advantages of a few bonanza mines, and the public is being taxed millions of dollars for that which belongs to it by right. How long is this condition to continue? Must all succeeding generations pay for coal, copper, zinc, lead, nickel, marble, oil, gas, and various other products of our mother-earth just what those who control the chief deposits choose to ask? Because a pioneer stumbles upon a valuable mine, shall the sole right to use the product of that mine be secured "to him, his heirs and assigns" forever? Suppose, now, that each of the several States were to acquire the title to all the productive mines, quarries, and mineral wealth within its borders, and enact laws providing that future discoverers of minerals on land where they are not now known to exist should be liberally rewarded, if the discovery proved valuable, but the minerals should belong to the State and not to the owner of the land. The same principle which we found to apply in the case of the railways would serve here in readjusting values, viz.: the difference in the rates of interest on safe investments and on risky ones. When acquired, the mines should be leased to private parties for operation. In the case of coal-mines and perhaps of iron, it would be well to copy largely from the scheme proposed for railway operation, viz.: place all the business in the hands of a single company, which should thus be enabled to carry on its business on the largest possible scale; do away with wasteful competition, and aim to regulate prices to provide a certain reasonable steady income on its capital to the mining company.