“In spite of the fog, rain, and mud of this morning, the galleries of the Senate Chamber began to fill at an early hour. In addition to the lounging _habitués_ of the daily sessions, came a crowd which left them no room to lounge. You have only to advertise a speech, and how the life-tide sets towards the Capitol! Mr. Sumner’s splendid oratory always attracts immense audiences, even when his speeches bear upon the unpopular subject of Slavery. “Most people seemed to think that he was the slave of this one idea, and could only be great when mounted on his hobby. But in his master speech on the Trent affair and its relation to Maritime and International Law he has proved himself to be something more than the accomplished scholar, the eloquent speech-maker, forcing the recognition of his statesmanship from the very mouths of his enemies. This exposition of the triumph of American principles, necessarily less ornate than his more literary productions, is marked by all his usual fastidious strength of style. Vibrating through his voice, every word seemed a live nerve quivering with electric meaning. “A speech so kind and calm in rebuke, so elaborate in research, so bountiful in proof, so conclusive in argument, coming from the Chairman of the Committee on Foreign Relations, and an acknowledged favorite of England, will appeal with strong conviction to her people. Here in Washington its praise is on every tongue. In the dense crowd of the gallery General Fremont was conspicuous, and among the Abolitionists of the audience were the Rev. John Pierpont and Rev. Dr. Channing of the new Antislavery church. The French, Danish, Prussian, Austrian, Russian, and Spanish ministers, with Secretaries Chase and Cameron, sat in groups in the Senate Chamber, amid the eagerly listening Senators. The last is a special item; for I observe, as an every-day habit, that these distinguished gentlemen do not pay very marked attention to each other’s speeches. In the crimson diplomatic gallery sat the daughter and wife of Vice-President Hamlin.” The editorial judgments were in harmony with the reports of correspondents. The _National Intelligencer_, at Washington, which had not inclined to Mr. Sumner on Slavery, said:-- “We give to-day, in consideration of the current interest attaching to its subject, and, we may add, because of its great ability, the speech delivered yesterday by Mr. Sumner in the Senate of the United States on the question of International Law raised by the arrest of Messrs. Mason and Slidell.