It is of noteworthy interest that the steady expansion of population, improvement, and governmental institutions over the new and unoccupied portions of our country have scarcely been checked, much less impeded or destroyed, by our great civil war, which at first glance would seem to have absorbed almost the entire energies of the nation.

The organization and admission of the State of Nevada has been completed in conformity with law, and thus our excellent system is firmly established in the mountains, which once seemed a barren and uninhabitable waste between the Atlantic States and those which have grown up on the coast of the Pacific Ocean.

The Territories of the Union are generally in a condition of prosperity and rapid growth. Idaho and Montana, by reason of their great distance and the interruption of communication with them by Indian hostilities, have been only partially organized; but it is understood that these difficulties are about to disappear, which will permit their governments, like those of the others, to go into speedy and full operation. As intimately connected with and promotive of this material growth of the nation, I ask the attention of Congress to the valuable information and important recommendations relating to the public lands, Indian affairs, the Pacific Railroad, and mineral discoveries contained in the report of the Secretary of the Interior which is herewith transmitted, and which report also embraces the subjects of patents, pensions, and other topics of public interest pertaining to his Department.

The quantity of public land disposed of during the five quarters ending on the 30th of September last was 4,221,342 acres, of which 1,538,614 acres were entered under the homestead law. The remainder was located with military land warrants, agricultural scrip certified to States for railroads, and sold for cash. The cash received from sales and location fees was $1,019,446.

The income from sales during the fiscal year ending June 30, 1864, was $678,007.21, against $136,077.95 received during the preceding year. The aggregate number of acres surveyed during the year has been equal to the quantity disposed of, and there is open to settlement about 133,000,000 acres of surveyed land.

The great enterprise of connecting the Atlantic with the Pacific States by railways and telegraph lines has been entered upon with a vigor that gives assurance of success, notwithstanding the embarrassments arising from the prevailing high prices of materials and labor. The route of the main line of the road has been definitely located for 100 miles westward from the initial point at Omaha City, Nebr., and a preliminary location of the Pacific Railroad of California has been made from Sacramento eastward to the great bend of the Truckee River in Nevada. Numerous discoveries of gold, silver, and cinnabar mines have been added to the many heretofore known, and the country occupied by the Sierra Nevada and Rocky mountains and the subordinate ranges now teems with enterprising labor, which is richly remunerative. It is believed that the product of the mines of precious metals in that region has during the year reached, if not exceeded, one hundred millions in value.

It was recommended in my last annual message that our Indian system be remodeled. Congress at its last session, acting upon the recommendation, did provide for reorganizing the system in California, and it is believed that under the present organization the management of the Indians there will be attended with reasonable success. Much yet remains to be done to provide for the proper government of the Indians in other parts of the country, to render it secure for the advancing set-tier, and to provide for the welfare of the Indian. The Secretary reiterates his recommendations, and to them the attention of Congress is invited.

The liberal provisions made by Congress for paying pensions to invalid soldiers and sailors of the Republic and to the widows, orphans, and dependent mothers of those who have fallen in battle or died of disease contracted or of wounds received in the service of their country have been diligently administered. There have been added to the pension rolls during the year ending the 30th day of June last the names of 16,770 invalid soldiers and of 271 disabled seamen, making the present number of army invalid pensioners 22,767 and of navy invalid pensioners 712.

Of widows, orphans, and mothers 22,198 have been placed on the army pension rolls and 248 on the navy rolls. The present number of army pensioners of this class is 25,433 and of navy pensioners 793. At the beginning of the year the number of Revolutionary pensioners was 1,430. Only 12 of them were soldiers, of whom 7 have since died. The remainder are those who under the law receive pensions because of relationship to Revolutionary soldiers. During the year ending the 30th of June, 1864, $4,504,616.92 have been paid to pensioners of all classes.

I cheerfully commend to your continued patronage the benevolent institutions of the District of Columbia which have hitherto been established or fostered by Congress, and respectfully refer for information concerning them and in relation to the Washington Aqueduct, the Capitol, and other matters of local interest to the report of the Secretary.