The facts that Northern teachers, Northern clergymen, Northern mercantile agents, Northern men upon business or pleasure, travelling at the South, and unwilling to stultify themselves, or become passive approvers and admirers of the "peculiar institution," were treated with all possible indignities, and might count themselves fortunate if they escaped with their lives. So complete was the universal devotion to slavery in all sections of the South, and so baneful its effects upon the people, that all other considerations were made subservient to this. For slavery, friends were alienated, hatred established, so bitter in its extent that only death could appease it. It demoralized the entire people; it found its way with all its horrid moral deformities, into the very capitol; it caused the murderous assault of Brooks upon Charles Sumner in the Senate, and the many altercations and bitter harangues which have from time to time disgraced our National Congress; it was its cropping out that caused the fearless and noble President Andy Johnson, to threaten to hang Jeff. Davis--and which he may yet be called upon to perform;--it was slavery that devised the doctrine of secession; that has led to the deadly conflict upon hundreds of battle fields, and has spilled the best blood of our nation, and caused mourning and gloom all over the face of our once happy land. What wonder then, that the noble Lincoln, who, in the sincerity of his heart, and in the dictates of superior wisdom, who, seeing and appreciating the encroachments and horrors of slavery, not only to the people in bondage, but to the citizens of our country in every section--who wonders that Lincoln, whose name is immortal, especially for his extirpation of this curse, should be singled out by the demon of slavery, and assigned by Davis, his prophet, for a violent death. Thank God, the cancer is extirpated so thoroughly, that its fibres of death can never again form to threaten destruction to our land. True, the operation has been most painful, and no anesthetic agent has been employed; the suffering has been fearful, and the country has, to its extremities, trembled with anguish; but it is over now. The assassination of the President was the will of Jeff. Davis, whispered in the temples of the Sons of Liberty or American Knights, into the ears of those of the members of the Orders, who had made the most proficiency in their teachings, and these beings, true to their _oaths_, went forth upon their mission of blood. The following "gems," from the debates in the Democratic National Convention, will be read with interest now and in future time: S.S. Cox, said: "He had attempted in his own city, a few weeks since, to show, in a very quiet way, that ABRAHAM LINCOLN HAD DELUGED THE COUNTRY WITH BLOOD, created a debt of four thousand million of dollars, sacrificed two millions of human lives, and filled the land with grief and mourning."