August 6th.—Prince Napoleon, anxious to visit the battle-field at Bull Run, has, to Mr. Seward’s discomfiture, applied for passes, and arrangements are being made to escort him as far as the Confederate lines. This is a recognition of the Confederates, as a belligerent power, which is by no means agreeable to the authorities. I drove down to the Senate, where the proceedings were very uninteresting, although Congress was on the eve of adjournment, and returning visited Mr. Seward, Mr. Bates, Mr. Cameron, Mr. Blair, and left cards for Mr. Brekinridge. The old woman who opened the door at the house where the latter lodged said, “Massa Brekinridge pack up all his boxes; I s’pose he not cum back here again.”