I recommend to Congress the establishment of a Territorial government over Arizona, incorporating with it such portions of New Mexico as they may deem expedient. I need scarcely adduce arguments in support of this recommendation. We are bound to protect the lives and the property of our citizens inhabiting Arizona, and these are now without any efficient protection. Their present number is already considerable, and is rapidly increasing, notwithstanding the disadvantages under which they labor. Besides, the proposed Territory is believed to be rich in mineral and agricultural resources, especially in silver and copper. The mails of the United States to California are now carried over it throughout its whole extent, and this route is known to be the nearest and believed to be the best to the Pacific.

Long experience has deeply convinced me that a strict construction of the powers granted to Congress is the only true, as well as the only safe, theory of the Constitution. Whilst this principle shall guide my public conduct, I consider it clear that under the war-making power Congress may appropriate money for the construction of a military road through the Territories of the United States when this is absolutely necessary for the defense of any of the States against foreign invasion. The Constitution has conferred upon Congress power "to declare war," "to raise and support armies," "to provide and maintain a navy," and to call forth the militia to "repel invasions." These high sovereign powers necessarily involve important and responsible public duties, and among them there is none so sacred and so imperative as that of preserving our soil from the invasion of a foreign enemy. The Constitution has therefore left nothing on this point to construction, but expressly requires that "the United States shall protect each of them [the States] against invasion." Now if a military road over our own Territories be indispensably necessary to enable us to meet and repel the invader, it follows as a necessary consequence not only that we possess the power, but it is our imperative duty to construct such a road. It would be an absurdity to invest a government with the unlimited power to make and conduct war and at the same time deny to it the only means of reaching and defeating the enemy at the frontier. Without such a road it is quite evident we can not "protect" California and our Pacific possessions "against invasion." We can not by any other means transport men and munitions of war from the Atlantic States in sufficient time successfully to defend these remote and distant portions of the Republic.

Experience has proved that the routes across the isthmus of Central America are at best but a very uncertain and unreliable mode of communication. But even if this were not the case, they would at once be closed against us in the event of war with a naval power so much stronger than our own as to enable it to blockade the ports at either end of these routes. After all, therefore, we can only rely upon a military road through our own Territories; and ever since the origin of the Government Congress has been in the practice of appropriating money from the public Treasury for the construction of such roads.

The difficulties and the expense of constructing a military railroad to connect our Atlantic and Pacific States have been greatly exaggerated. The distance on the Arizona route, near the thirty-second parallel of north latitude, between the western boundary of Texas, on the Rio Grande, and the eastern boundary of California, on the Colorado, from the best explorations now within our knowledge, does not exceed 470 miles, and the face of the country is in the main favorable. For obvious reasons the Government ought not to undertake the work itself by means of its own agents. This ought to be committed to other agencies, which Congress might assist, either by grants of land or money, or by both, upon such terms and conditions as they may deem most beneficial for the country. Provision might thus be made not only for the safe, rapid, and economical transportation of troops and munitions of war, but also of the public mails. The commercial interests of the whole country, both East and West, would be greatly promoted by such a road, and, above all, it would be a powerful additional bond of union. And although advantages of this kind, whether postal, commercial, or political, can not confer constitutional power, yet they may furnish auxiliary arguments in favor of expediting a work which, in my judgment, is clearly embraced within the war-making power.

For these reasons I commend to the friendly consideration of Congress the subject of the Pacific Railroad, without finally committing myself to any particular route.

The report of the Secretary of the Treasury will furnish a detailed statement of the condition of the public finances and of the respective branches of the public service devolved upon that Department of the Government. By this report it appears that the amount of revenue received from all sources into the Treasury during the fiscal year ending the 30th June, 1857, was $68,631,513.67, which amount, with the balance of $19,901,325.45 remaining in the Treasury at the commencement of the year, made an aggregate for the service of the year of $88,532,839.12.

The public expenditures for the fiscal year ending 30th June, 1857, amounted to $70,822,724.85, of which $5,943,896.91 were applied to the redemption of the public debt, including interest and premium, leaving in the Treasury at the commencement of the present fiscal year, on the 1st July, 1857, $17,710,114.27.

The receipts into the Treasury for the first quarter of the present fiscal year, commencing 1st July, 1857, were $20,929,819.81, and the estimated receipts of the remaining three quarters to the 30th June, 1858, are $36,750,000, making, with the balance before stated, an aggregate of $75,389,934.08 for the service of the present fiscal year.

The actual expenditures during the first quarter of the present fiscal year were $23,714,528.37, of which $3,895,232.39 were applied to the redemption of the public debt, including interest and premium. The probable expenditures of the remaining three quarters to 30th June, 1858, are $51,248,530.04, including interest on the public debt, making an aggregate of $74,963,058.41, leaving an estimated balance in the Treasury at the close of the present fiscal year of $426,875.67.

The amount of the public debt at the commencement of the present fiscal year was $29,060,386.90.