right of self-government in a matter which peculiarly affects themselves will infallibly be regarded by them as an invasion of their rights, and, upon the principles laid down in our own Declaration of Independence, they will certainly be sustained by the great mass of the American people.  To assert that they are a conquered people and must as a State submit to the will of their conquerors in this regard will meet with no cordial response among American freemen.  Great numbers of them are native citizens of the United States, not inferior to the rest of our countrymen in intelligence and patriotism, and no language of menace to restrain them in the exercise of an undoubted right, substantially guaranteed to them by the treaty of cession itself, shall ever be uttered by me or encouraged and sustained by persons acting under my authority.  It is to be expected that in the residue of the territory ceded to us by Mexico the people residing there will at the time of their incorporation into the Union as a State settle all questions of domestic policy to suit themselves.

No material inconvenience will result from the want for a short period of a government established by Congress over that part of the territory which lies eastward of the new State of California; and the reasons for my opinion that New Mexico will at no very distant period ask for admission into the Union are founded on unofficial information which, I suppose, is common to all who have cared to make inquiries on that subject.

Seeing, then, that the question which now excites such painful sensations in the country will in the end certainly be settled by the silent effect of causes independent of the action of Congress, I again submit to your wisdom the policy recommended in my annual message of awaiting the salutary operation of those causes, believing that we shall thus avoid the creation of geographical parties and secure the harmony of feeling so necessary to the beneficial action of our political system.  Connected, as the Union is, with the remembrance of past happiness, the sense of present blessings, and the hope of future peace and prosperity, every dictate of wisdom, every feeling of duty, and every emotion of patriotism tend to inspire fidelity and devotion to it and admonish us cautiously to avoid any unnecessary controversy which can either endanger it or impair its strength, the chief element of which is to be found in the regard and affection of the people for each other.

Z. TAYLOR.

[A similar message, dated January 21, 1850, was sent to the House of Representatives, in answer to a resolution of that body.]

WASHINGTON, January 23, 1850.

To the Senate of the United States: