Mr. Seward to Count Wydenbruck.

Sir: I have the honor to acknowledge the receipt of your note of the 17th instant, making inquiry as to the steps taken by the Department of State with reference to the urgent request of the Emperor of Austria, communicated to this department on the 29th of May.

In reply, I have the honor to inform you that, in pursuance with a resolution of the Senate, all the documents relating to the capture, trial, and execution of Prince Maximilian have been laid before that body by the President of the United States, and that, so soon as they shall have been printed, I shall take pleasure in transmitting you a copy thereof.

I avail myself of this opportunity to renew to you, sir, the assurances of my highest consideration.

WILLIAM H. SEWARD.

Count Wydenbruck, &c., &c., &c.