MR. BRECKINRIDGE said, he had on so many occasions and in so many different forms uttered the sentiments contained in the passages which had just been read as his, that he was unable to say from what particular speech or writing they were taken. But he had no doubt that if the whole passage to which they belonged were read, it would be seen that they contained, in addition to what they had heard, the most unqualified condemnation of the irrational course pursued by the abolitionists. He believed also, that, whatever it was, that writing had been uttered by him in a slave state. For he could say for himself, that he had never said that of a brother behind his back, which he would be afraid or unwilling to repeat before his face. He had never gone to Boston, to cry back to Baltimore, how great a sin they were guilty of in upholding slavery. The worst things which he had said against slavery had been said in the slave states, and had Mr. Thompson gone there and seen with his two eyes, what he describes wholly upon hearsay, he would, perhaps, have understood the subject better than he seems to do. As he felt himself divinely commissioned, he should have felt no fear, he should have gone at whatever hazard, he should have seen slavery in its true colors, though he had read it in his own blood. If Saul of Tarsus had gone to America to see slavery--I dare to say, with the help of God, he would have been right sure to see it. He did not say that Mr. T. should have gone to the Southern states if his life was likely to be endangered by his going there; but he would say this, that Mr. Thompson ought not to pretend, that he had been, in the least degree, a martyr in the cause, when, in reality, he had exercised the most masterly discretion. With regard to the acts of the abolitionists, as he had been called on to mention particulars, he could not say that he had ever heard of their having killed any person, nor had he ever heard of any of them being killed. He might mention, however, that he himself had once almost been mobbed in Boston, and, that too, by a mob stirred up against him, by placards, written, as he believed, by William Lloyd Garrison. He had never obtained direct proof of this, but he might state, as a reason for his belief, that the inflammatory placards were of the precise breadth and appearance of the columns of Garrison's paper--the Liberator, and the breadth of the columns of no other newspaper in that city. Mr. B. stated a second case, in which, on the arrival at the city of New York of the Rev. J. L. Wilson, a missionary to Western Africa, in charge of two lads, the sons of two African kings, committed by their fathers to the Maryland Colonization Society for education; some friends of the Anti-Slavery Society of that city, with the concurrence, if not by the procurement, as was universally believed, of Elizur Wright, Jr., a leading person, and Secretary of the principal society of abolitionists--got out a writ to take the