By letters from General Wilkinson of the 14th and 18th of December, which came to hand two days after the date of the resolution of the House of Representatives--that is to say, on the morning of the 18th instant--I received the important affidavit a copy of which I now communicate, with extracts of so much of the letters as comes within the scope of the resolution. By these it will be seen that of three of the principal emissaries of Mr. Burr whom the General had caused to be apprehended, one had been liberated by habeas corpus, and two others, being those particularly employed in the endeavor to corrupt the general and army of the United States, have been embarked by him for ports in the Atlantic States, probably on the consideration that an impartial trial could not be expected during the present agitations of New Orleans, and that that city was not as yet a safe place of confinement. As soon as these persons shall arrive they will be delivered to the custody of the law and left to such course of trial, both as to place and process, as its functionaries may direct. The presence of the highest judicial authorities, to be assembled at this place within a few days, the means of pursuing a sounder course of proceedings here than elsewhere, and the aid of the Executive means, should the judges have occasion to use them, render it equally desirable for the criminals as for the public that, being already removed from the place where they were first apprehended, the first regular arrest should take place here, and the course of proceedings receive here its proper direction. TH. JEFFERSON. JANUARY 26, 1807. _To the Senate, and House of Representatives of the United States_: I received from General Wilkinson on the 23d instant his affidavit charging Samuel Swartwout, Peter V. Ogden, and James Alexander with the crimes described in the affidavit a copy of which is now communicated to both Houses of Congress. It was announced to me at the same time that Swartwout and Bollman, two of the persons apprehended by him, were arrived in this city in custody each of a military officer. I immediately delivered to the attorney of the United States in this district the evidence received against them, with instructions to lay the same before the judges and apply for their process to bring the accused to justice, and put into his hands orders to the officers having them in custody to deliver them to the marshal on his application. TH. JEFFERSON. JANUARY 27, 1807. _To the Senate and House of Representatives of the United States_: I now render to Congress the account of the fund established for defraying the contingent expenses of Government for the year 1806. No occasion having arisen for making use of any part of the balance of $18,012.50, unexpended on the 31st day of December, 1805, that balance remains in the Treasury. TH. JEFFERSON. JANUARY 28, 1807. _To the Senate and House of Representatives of the United States_: