I have in vain sought for any document, emanating from the Republic or State of Texas, for the purpose of sustaining its claim either to New Mexico or to the country bordering on the lower portion of the del Norte. The only official papers within my reach, in which the claim of Texas is sustained, are the President's messages of May 11 and Dec. 3rd, 1846; and these refer only to the country bordering on the lower part of the del Norte. The portion of the message of May 11th, 1846, relating to that subject, is as follows: "Meantime Texas, by the final action of our Congress, had become an integral part of our Union. The Congress of Texas, by its act of December 19, 1836, had declared the Rio del Norte to be the boundary of that republic. Its jurisdiction had been extended and exercised beyond the Nueces. The country between that river and the del Norte had been represented in the Congress and in the Convention of Texas; had thus taken part in the act of annexation itself; and is now included within one of our congressional districts. Our own Congress had, moreover, with great unanimity, by the act approved December 31, 1845, recognized the country beyond the Nueces as a part of our territory, by including it within our own revenue system; and a revenue officer, to reside within that district, has been appointed, by and with the advice and consent of the Senate. It became, therefore, of urgent necessity to provide for the defence of that portion of our country. Accordingly, on the 13th of January last, instructions were issued to the general in command of these troops to occupy the left bank of the del Norte.... The movement of the troops to the del Norte was made by the commanding general, under positive instructions to abstain from all aggressive acts towards Mexico or Mexican citizens, and to regard the relations between that Republic and the United States as peaceful, unless she should declare war, or commit acts of hostility indicative of a state of war. He was specially directed to protect private property, and respect personal rights." In his annual message of December 8, 1846, the President states that Texas, as ceded to the United States by France in 1803, has been always claimed as extending west to the Rio Grande; that this fact is established by declarations of our Government during Mr. Jefferson's and Mr. Monroe's administrations; and that the Texas which was ceded to Spain by the Florida treaty of 1819, embraced all the country now claimed by the State of Texas between the Nueces and the Rio Grande.