In conclusion, he would recommend to Mr. Thompson, should he ever return to America, he need not be so tremendously prudent in regard to his personal safety, if he would just not be so tremendously imprudent in the principles and proceedings he advocated, and the statements he made with regard to the conduct of the American people. He had now gone over the assertions of Mr. Thompson, regarding the Maryland colonization scheme, and he trusted that he had shown the unfounded nature of those assertions. All that had been said by Mr. T. as to the principles and objects of the colonizationists, and the scope and influence of their course, had no other proof than the writings of those persons, who for some years, had formed a very small portion of the supporters of this great interest; and who, without exception, belonged to those classes, who at first, as had already been admitted, supported it, for reasons, some of which were entirely political, others perhaps severe to the slaves, and others unjust or inconsiderate towards the free blacks. But that directly opposite views, statements and arguments, could be more amply procured from the still greater, and still proportionately increasing party, who support this cause, as a great benevolent and religious operation, must be perfectly known to the individual himself. If he admit this, said Mr. B., it will show his present course to be of the same uncandid kind with all the rest of his conduct towards America, in selecting what answered his purpose; that always being the worst thing he could find, and representing it as a fair sample of all. It will do more, it will show that what he calls proof is no proof at all. But if he denies my repeated representations as to the various classes of the original supporters of the parent society, and the present state of them, I am equally content; as, in that case, all America would have a fair criterion by which to test his statements. As to the Maryland plan, and that pursued by the united societies of Philadelphia and New York, if they have any supporters except such as love the cause of the black man, of temperance, and of peace, the world has yet to find it out. The time being expired, Mr. B. sat down. FOURTH NIGHT--THURSDAY, JUNE 16.