"I issued proposals for the publication of the "_Liberator_" in Washington City, during my recent tour, for the purpose of exciting the minds of the people on the subject of slavery. Every place I visited gave fresh evidences of the fact that a greater revolution in public sentiment was to be effected in the free States, and particularly in New England, than at the South. I found contempt more bitter, opposition more active, detraction more relentless, prejudice more stubborn and apathy more frozen, than among the slaveowners themselves. I determined at every hazard to lift up the standard of emancipation in the eyes of the nation, within sight of Bunker Hill, and in the birthplace of liberty. I am in earnest; I will not equivocate, I will not excuse, I will not retreat a single inch. I will be heard. The apathy of the people is enough to make every statue lift from its pedestal, and to hasten the resurrection of the dead." From this time it may be said that the anti-slavery cause took its place among the moral enterprises of the day. It assumed a definite shape, and commenced that system of warfare which has since been unremittingly waged against the South. During this year--1830--Mr. Tappan, Rev. S. S. Jocelyn, and others, projected the establishment of a seminary of learning at New Haven for the benefit of colored students; but, opposition manifesting itself, it was abandoned. The first regularly organized convention of colored men ever assembled in the United States for a similar purpose also held a meeting this year, and aided and abetted by the Tappans, Jocelyns and other agitators of the period, attempted to devise ways and means for bettering their condition and that of their race. They reasoned that all distinctive differences made among men on account of their origin was wicked, unrighteous and cruel, and solemnly protested against every unjust measure and policy in the country having for its object the proscription of the colored people, whether state, national, municipal, social, civil or religious. In fact, white men and black seem to have started in the race together, consorting like brothers and sisters together in their aims and projects to accomplish the same end. About this time publications began to be scattered through the South, whose direct tendency was to stir up insurrection among the slaves. The Liberator found its way mysteriously into the hands of the negroes, and individuals, under the garb of religion, were discovered in private consultation with the slaves. Suddenly, in August, 1831, the whole Union was startled by the announcement of an outbreak among the slaves of Southampton County, Va; and now commences the history of a career of violence and bloodshed that has marked every footstep of the abolition movement. THE NAT TURNER INSURRECTION.