All experience shows that the partisans of Slavery stick at nothing, where the imagined interests of Slavery are in question. The essential brutality of Slavery showed itself lately in New York, when Marshal Rynders personally assaulted a venerable citizen who appeared at his office on public business, cursing him with most blasphemous oaths; and it showed itself here in Boston, when the supporters of Mr. Appleton for weeks traduced the Republican candidate, uttering calumnies which were as basely false with regard to him as if they had been uttered in detraction of Mr. Appleton. Such conduct must make us hate Slavery more, and add to our mortification that it prevailed among us. It belongs to the Republican party, at last triumphant in the nation, inflexibly to sustain its principles, and also to sustain the men who are true to these principles. In this duty I doubt not it will be guided by that temperate judgment which is in harmony with the consciousness of right. God bless the Wide-Awakes! And believe me, dear Sir, Faithfully yours, CHARLES SUMNER. S. B. STEBBINS, Esq. THE VICTORY AND PRESENT DUTIES. SPEECH TO THE WIDE-AWAKES, AT PROVIDENCE, RHODE ISLAND, NOVEMBER 16, 1860. Late in the evening, after lecturing[39] in Providence, Mr. Sumner, who was the guest of Hon. A. C. Barstow, received a serenade from the Wide-Awakes, commanded by Colonel Dexter, with a band of music, and accompanied by the “Central Glee Club” and the “National Vocalists.” The space in front of the house, and the streets, for some distance, were thronged. After music by the band, Mr. Sumner appeared on the front steps of the house, and addressed the immense crowd. GENTLEMEN OF THE WIDE-AWAKES:-- I had supposed that with our great triumph you would naturally retire to your homes, like soldiers when peace has come. But this goodly show assures me that here in Providence you still exist as a distinct body, ready with sympathy, and I doubt not for duty also. In the faithful record of recent events, the service performed by the Wide-Awakes cannot be forgotten. I see it in two different aspects. Besides contributing immensely to that victory which now gladdens our hearts, you have shown that here at the North are men ready, if the exigency requires, to leap forward in defence of Northern rights, which are only Constitutional rights. In these two things you have done well, and I am happy in this opportunity of offering you my grateful thanks.