The REV.  PROFESSOR STOWE rose amid loud, and repeated cheers, and said, “It is extremely painful for me to speak on the subject of American slavery, and especially out of the borders of my own country. [Hear, hear!] I hardly know whether painful or pleasurable emotions predominate, when I look upon the audience to which I speak.  I feel a very near affinity to the Congregationalists of England, and especially to the Congregationalists of London. [Cheers.] My ancestors were residents of London; at least, from the time of Edward III.; they lived in Cornhill and Leadenhall Street, and their bones lie buried in the old church of St. Andrew Under-Shaft; and, in the year 1632, on account of their nonconformity, they were obliged to seek refuge in the State of Massachusetts; and I have always felt a love and a veneration for the Congregational churches of England, more than for any other churches in any foreign land. [Cheers.] I can only hope, that my conduct, as a religious man and a minister of Christ, may not bring discredit upon my ancestors, and upon the honorable origin which I claim. [Hear! and cheers.] I wish to say, in the first place, that in the United States the Congregational churches, as a body, are free from slavery. [Cheers.] I do not think that there is a Congregational church in the United States in which a member could openly hold a slave without subjecting himself to discipline.[F] True, I have met with churches very deficient in their duty on this subject, and I am afraid there are members of Congregational churches who hold slaves secretly as security for debt in the Southern States.  At the last great Congregational Convention, held in the city of Albany, the churches took a step on the subject of slavery much in advance of any other great ecclesiastical body in the country.  I hope it is but the beginning of a series of measures that will eventuate in the separation of this body from all connection with slavery. [Hear, hear!] I am extensively acquainted with the United States; I have lived in different sections of them; I am familiar with people of all classes, and it is my solemn conviction, that nine tenths of the people feel on the subject of slavery as you do;[G] [cheers;] perhaps not so intensely, for familiarity with wrong deadens the conscience; but their convictions are altogether as yours are; and in the slaveholding states, and among slaveholders themselves, conscience is against the system. [Cheers.] There is no legislative control of the subject of slavery, except by slaveholding legislators themselves.  Congress has no right to do any thing in the premises.  They violated the constitution, as I believe, in passing the Fugitive Slave Act. [Cheers.] I do not believe they had any right to pass it. [Hear, hear!] I stand here not as the representative of any body whatever.  I only represent myself, and give you my individual convictions, that have been produced by a long and painful connection with the subject. [Hear, hear!]