True, we are slowly and gradually recovering from this perversion of opinion. The Emancipation Proclamation was probably issued as soon, or nearly as soon, as the Northern sentiment was prepared to give it even a moral support. Another term had to expire to accustom the same public mind to appropriate the spirit of that document as matter of earnest; to come to regard it as anything more than a mere _brutum fulmen_, a Pope's bull, as President Lincoln once called it himself, against the comet. Up to this hour, its effect on the war has been far more as a moral influence preparing for a great change of opinion and of conduct, than as a charter of efficient operations. General Thomas's action at the South, just previous to the capture of Vicksburg, began experimentally to inaugurate, on something like an adequate scale, the new programme of practical work in the conduct of the war. Even a month earlier his movement would hardly have been tolerated by the same army, which, just then beginning to appreciate the tremendous difficulty of the enterprise of conquering the South, were ready to accept anything new which promised to augment their own strength and to weaken that of the enemy. Still another term of waiting and suffering is requisite to change the habit of mind which has so long despised and maltreated the negro, before he will be put, in all respects, upon the footing of his own merit as a patriot and a soldier; and before all of his uses as the severest goad in the sides of the hostile South will be fairly appreciated. Thus in all ways we are only now in the midst of a revolution of opinion, which, when it is accomplished, will be seen to be the greatest triumph of the war. Though we have spoken of this change as slowly and gradually occurring, yet, viewed with reference to the long periods of a nation's life, it is an immense revolution almost instantly effected. We are perhaps already one half prepared adequately to use our tremendous advantage. New disasters may be providentially requisite to quicken our education in the right direction; more punishment for our complicity in the crimes of the South; new incentives to a more perfect love of justice as a people; but every indication points to the early achievement of these substantial victories over ourselves, while, at the same time, we conquer the powerful array of Southern intrepidity and desperation, in behalf of their bad cause, upon the external battle field. To resume the question of causes. Why is there, and why has there always been at the South this unfortunate prevalence of certain political heresies, as Nullification, Secession, and the exaggerated theory of State Rights?