Acquainted as he (Mr. T.) was with America, he had been able to come to no other conclusion, but that the prejudice of color was that on which the colonization of the free negro was founded. There had been a great deal said of the inferior intellect of the black race, and of a marked deficiency in their moral qualities; but these were not the grounds on which it was sought to expatriate them; the injustice practised towards them rested solely on the prejudice which had been excited against their external personal peculiarities. Every word spoken by Mr. Breckinridge in defence of colonization, went directly to prove this. The whole scheme rested on the dark color of those to be expatriated. Had the sufferers been white in the skin, Mr. B. would have advocated immediate, complete, and everlasting emancipation. He would now turn to a matter, regarding which he considered Mr. Breckinridge had treated the abolitionists of America with injustice--with unkindness--with something which he did not like even to name. Mr. B. had charged the abolitionists with having published a law as the law of the state of Maryland, which had never been adopted by the legislature of that state; and when he (Mr. T.) had required of Mr. B. evidence in support of his grave allegations, it was in this case precisely as in the case of Mr. Garrison and Mr. Wright,--the proofs were non est inventus. Now, he would ask, was this fair; was it magnanimous; was it generous; was it Christianlike? The charge had been distinctly made, and then it had been asked of the parties accused to prove a negative. Mr. Breckinridge was not likely to be long in Glasgow, and it was therefore most easy, and most convenient, to prefer charges which could not, even on the testimony of the parties implicated, be answered until Mr. Breckinridge was far away, and the poison had had full time to work its effect. He (Mr. T.) would, however, give it as his opinion, that his fellow laborers on the other side of the Atlantic, would triumphantly clear themselves of this and every other imputation, and finally emerge from the ordeal, however fierce, pure, untarnished, and unscathed. Such a charge, however, should not be brought against him (Mr. T.). The laws of Maryland, he cited, were to be found in the pages of the Colonization Society's accredited organ, the African Repository, an entire set of which was on the platform, open to inspection. Mr. Breckinridge had taken great pains to make out a case for the Maryland Colonization Society. This was not to be wondered at. That society was a protege of his own. It had been patronized and fostered by him. For it, it appeared, he had almost suffered martyrdom, when, in advocating its cause in Boston, he had been mistaken for an abolitionist,--in that same city of Boston, where a gentlemanly mob of 5000 individuals, fashionably attired, in black, and brown, and blue cloth, had joyfully engaged in assaulting and dispersing a peaceful meeting of forty ladies.