The aggravating circumstances connected with our claims upon Mexico and a variety of events touching the honor and integrity of our Government led my predecessor to make at the second session of the last Congress a special recommendation of the course to be pursued to obtain a speedy and final satisfaction of the injuries complained of by this Government and by our citizens. He recommended a final demand of redress, with a contingent authority to the Executive to make reprisals if that demand should be made in vain. From the proceedings of Congress on that recommendation it appeared that the opinion of both branches of the Legislature coincided with that of the Executive, that any mode of redress known to the law of nations might justifiably be used. It was obvious, too, that Congress believed with the President that another demand should be made, in order to give undeniable and satisfactory proof of our desire to avoid extremities with a neighboring power, but that there was an indisposition to vest a discretionary authority in the Executive to take redress should it unfortunately be either denied or unreasonably delayed by the Mexican Government. So soon as the necessary documents were prepared, after entering upon the duties of my office, a special messenger was sent to Mexico to make a final demand of redress, with the documents required by the provisions of our treaty. The demand was made on the 20th of July last. The reply, which bears date the 29th of the same month, contains assurances of a desire on the part of that Government to give a prompt and explicit answer respecting each of the complaints, but that the examination of them would necessarily be deliberate; that in this examination it would be guided by the principles of public law and the obligation of treaties; that nothing should be left undone that might lead to the most speedy and equitable adjustment of our demands, and that its determination in respect to each case should be communicated through the Mexican minister here.