The perversion of public opinion by the Catholic church, and the practical beguilement of her warmest friends, effected by the consummate craft with which she plots to achieve her objects, have presented fresh evidence to the world in the singular fact, that while she is radically the most efficient abolition society that ever was projected, and that while in her official mandates to the clergy she has invariably denounced the traffic in human beings as infamous, yet has she commanded the homage of the American slave-holder for her friendly disposition towards the Southern institution; and induced her members, while using them as instruments in the accomplishment of her projects for the abolishment of slavery, to hate, denounce, and to anathematize the North for its abolition proclivities. But there were other considerations which probably stimulated the humanity of the church in her labors for the abolition of slavery. The condition of the slave precludes the possibility of his serving her in the capacity of a spy on the opinions and conduct of his master; and as he received no wages she could not assess him for her benefit. The perfection of the pope's system of espionage, and the augmentation of his revenue, were both connected with the slave's disenthralment. These advantages could not be undesirable to the church, and the avidity with which she has improved them, shows how clearly she foresaw them. Through accident or Jesuistical craft, it has happened, that colored servants have been supplanted to an incredible extent by white Catholic servants, who as serviceable spies far excel them. I regret not the abolishment of the revolting traffic in human beings, nor do I censure the Catholic church for the important aid she rendered in its achievement; but I hope American freemen will not want the vigilance to prevent her from improving the new condition of things, so much to her advantage as to endanger the liberty of the country.