had labored for ages, he might almost say for half centuries. During that time they had effected much, and they would have done more but for the interference of the party with which Mr. Thompson was identified. A party whose principles were based on false metaphysics--on false morality, who came often with the fury of demons, and yet said they were sent by God. He would say the cause of emancipation had been much injured by the ill-designed efforts of that party, they had thrown the cause a hundred years farther back, than it was five years ago. In reference to the Maryland colonization scheme, of which they had heard so much from Mr. Thompson, he would only be able, as his time was nearly expired, to make a remark or two. That Society had existed for about four years. In its fourth annual report there is a statement from the managers of the Maryland State fund, that within the preceding year, two hundred and ninety-nine manumissions had been reported to them, which, with those previously reported, make eleven hundred and one slaves manumitted, purely and freely manumitted, within four years in that State: while the total number of colored persons transported to Liberia since the Society commenced its operations was then only one hundred and forty, as exhibited by the same report. Nothing could show more clearly the falsity of those statements which represent the scheme of Maryland colonization, as being cruel, oppressive, and peculiarly opposed to the progress of emancipation. The direct contrary is in all respects true. With regard to the book from which Mr. Thompson had read some extracts, purporting to be the laws of Maryland; if he were not mistaken, that book was a violent and inflammatory pamphlet written by some person, perhaps Mr. Thompson himself, shortly after his (Mr. B's) visit to Boston. He would not enter upon the discussion of the merits of that pamphlet, against which it had been alleged in America, at the place where it originated, and he believed truly charged, that instead of containing faithful extracts from the laws of Maryland, it did in fact, contain only schemes of laws which had been proposed in the Assembly of Maryland, but which had never received their sanction; chiefly in consequence of the opposition of the friends of colonization. In conclusion, he would say, that the Maryland scheme was, as a whole, one of the most wise and humane projects that had ever been devised. He had no objection on proper occasions, to go fully into it, and he hoped to be able to show that it would do much for the amelioration of the negro race. THIRD NIGHT--WEDNESDAY, JUNE 15.