It was upon these considerations that at the close of your last session I gave my sanction to the principle of the Missouri compromise line by approving and signing the bill to establish "the Territorial government of Oregon." From a sincere desire to preserve the harmony of the Union, and in deference for the acts of my predecessors, I felt constrained to yield my acquiescence to the extent to which they had gone in compromising this delicate and dangerous question. But if Congress shall now reverse the decision by which the Missouri compromise was effected, and shall propose to extend the restriction over the whole territory, south as well as north of the parallel of 36° 30', it will cease to be a compromise, and must be regarded as an original question.

If Congress, instead of observing the course of noninterference, leaving the adoption of their own domestic institutions to the people who may inhabit these territories, or if, instead of extending the Missouri compromise line to the Pacific, shall prefer to submit the legal and constitutional questions which may arise to the decision of the judicial tribunals, as was proposed in a bill which passed the Senate at your last session, an adjustment may be effected in this mode. If the whole subject be referred to the judiciary, all parts of the Union should cheerfully acquiesce in the final decision of the tribunal created by the Constitution for the settlement of all questions which may arise under the Constitution, treaties, and laws of the United States.

Congress is earnestly invoked, for the sake of the Union, its harmony, and our continued prosperity as a nation, to adjust at its present session this, the only dangerous question which lies in our path, if not in some one of the modes suggested, in some other which may be satisfactory.

In anticipation of the establishment of regular governments over the acquired territories, a joint commission of officers of the Army and Navy has been ordered to proceed to the coast of California and Oregon for the purpose of making reconnoissances and a report as to the proper sites for the erection of fortifications or other defensive works on land and of suitable situations for naval stations. The information which may be expected from a scientific and skillful examination of the whole face of the coast will be eminently useful to Congress when they come to consider the propriety of making appropriations for these great national objects. Proper defenses on land will be necessary for the security and protection of our possessions, and the establishment of navy-yards and a dock for the repair and construction of vessels will be important alike to our Navy and commercial marine. Without such establishments every vessel, whether of the Navy or of the merchant service, requiring repair must at great expense come round Cape Horn to one of our Atlantic yards for that purpose. With such establishments vessels, it is believed, may be built or repaired as cheaply in California as upon the Atlantic coast. They would give employment to many of our enterprising shipbuilders and mechanics and greatly facilitate and enlarge our commerce in the Pacific.

As it is ascertained that mines of gold, silver, copper, and quicksilver exist in New Mexico and California, and that nearly all the lands where they are found belong to the United States, it is deemed important to the public interest that provision be made for a geological and mineralogical examination of these regions. Measures should be adopted to preserve the mineral lands, especially such as contain the precious metals, for the use of the United States, or, if brought into market, to separate them from the farming lands and dispose of them in such manner as to secure a large return of money to the Treasury and at the same time to lead to the development of their wealth by individual proprietors and purchasers. To do this it will be necessary to provide for an immediate survey and location of the lots. If Congress should deem it proper to dispose of the mineral lands, they should be sold in small quantities and at a fixed minimum price.

I recommend that surveyors-general's offices be authorized to be established in New Mexico and California and provision made for surveying and bringing the public lands into market at the earliest practicable period. In disposing of these lands, I recommend that the right of preemption be secured and liberal grants made to the early emigrants who have settled or may settle upon them.

It will be important to extend our revenue laws over these territories, and especially over California, at an early period. There is already a considerable commerce with California, and until ports of entry shall be established and collectors appointed no revenue can be received.

If these and other necessary and proper measures be adopted for the development of the wealth and resources of New Mexico and California and regular Territorial governments be established over them, such will probably be the rapid enlargement of our commerce and navigation and such the addition to the national wealth that the present generation may live to witness the controlling commercial and monetary power of the world transferred from London and other European emporiums to the city of New York.

The apprehensions which were entertained by some of our statesmen in the earlier periods of the Government that our system was incapable of operating with sufficient energy and success over largely extended territorial limits, and that if this were attempted it would fall to pieces by its own weakness, have been dissipated by our experience. By the division of power between the States and Federal Government the latter is found to operate with as much energy in the extremes as in the center. It is as efficient in the remotest of the thirty States which now compose the Union as it was in the thirteen States which formed our Constitution. Indeed, it may well be doubted whether if our present population had been confined within the limits of the original thirteen States the tendencies to centralization and consolidation would not have been such as to have encroached upon the essential reserved rights of the States, and thus to have made the Federal Government a widely different one, practically, from what it is in theory and was intended to be by its framers. So far from entertaining apprehensions of the safety of our system by the extension of our territory, the belief is confidently entertained that each new State gives strength and an additional guaranty for the preservation of the Union itself.

In pursuance of the provisions of the thirteenth article of the treaty of peace, friendship, limits, and settlement with the Republic of Mexico, and of the act of July 29, 1848, claims of our citizens, which had been "already liquidated and decided, against the Mexican Republic" amounting, with the interest thereon, to $2,023,832.51 have been liquidated and paid. There remain to be paid of these claims $74,192.26.