The Commissioner, therefore, very justly concludes that, under existing circumstances, our mineral lands ought to yield a national revenue, and he proposes a preliminary reconnoissance, and licenses, at $10 each, to be paid in the mean time by the miners to the Government. Beyond these suggestions he proceeds at present no farther. The general estimate of the extent of our mineral lands of the public domain, exceeds twenty millions of acres. It extends from near the 32d to the 49th parallel of latitude, and from the lakes and the Mississippi river to the Pacific. It is not supposed that every acre of these twenty millions contains mines, but that all are so connected as to be embraced in the same mineral region. These lands, at an average price of $25 per acre, would be worth $500,000,000. I do not assert that this is their value, but it is a fact that some of the mines already worked on our public domain are worth many thousand dollars _per foot_, even in the present difficulty of access by roads, and the enormous cost of provisions. It is sufficient for the argument that these mines and mineral lands are of great value, that they are public property, and, in the present condition of our country, ought to be made a source of revenue. This question concerns the present and future miners. As to the present miners, they are working these lands without any legal title, but by the long acquiescence of the Government. They are the pioneers, who, amid great dangers, privations, and sufferings, have explored these mineral regions and developed their enormous value. As regards these pioneers now working the mineral lands of the Government, I think, as a general rule, the existing miners' code should be carried into effect. They should be required to register their claims with the proper officer of the Federal Government, to file copies and descriptive notes of their surveys and locations, and to report the product of the mines. This would form a good basis for the reconnoissance proposed by the Commissioner, and for the exploration and resurvey of these claims by the Government. Such proceedings would effect the following results: 1st. To prevent litigation among the present miners. 2d. To enable the Government to separate their lands from the public domain, and to give them a _perfect title_. 3d. To survey and designate the unoccupied mineral lands of the Government. I think it would be just, and good policy to confirm the rights of the present miners according to the existing regulations in the several districts, charging them only a nominal price for a complete title and patent from the Government, which price should not be more than the cost of survey and incidental expenses, not exceeding a few cents an acre. This would greatly improve the condition of the present miners, to whom we are indebted for the development of this region; would give them a perfect title, where now they have none; and, in many cases, would enable them to raise the