However this may be, these professions of the friends of the South in Europe, and particularly of their friends in France and England, will soon be tested. If the South objects to emancipation, and denounces this proclamation, they will make this contest, on their part, still more clearly a war for the maintenance, perpetuity, and unlimited extension of slavery. If, under such circumstances, England continues to support the rebellion, she must do so as the open and avowed advocate of slavery. What is to be done with the slaves when they are emancipated? is a grave question, which we shall discuss at a future period. There can be little doubt, however, that emancipation, on a scale so extensive, would give a great impulse to the cause of colonization. There are, however, three classes of States in which this proclamation will have no effect on the 1st of January next: 1st. The Border States. 2d. Such of the rebel States, and such parts of them, as shall return to their allegiance before that date. 3d. Such of the rebel States, and such parts of them, as shall not then have been conquered. In the mean time there may be rebel States, or portions of them, where the apprehended loss of their slaves, as a consequence of persisting in the rebellion, may induce a return to the Union, and thus hasten a successful conclusion of the war. How far this proclamation, merely as such, would avail to change the status of slaves in such seceded States as may not be occupied by us and conquered before the first of January next, may be more appropriately discussed when, if ever, such a contingency shall happen. In the mean time, whatever may be the effect of this proclamation upon the institution of slavery, which was the cause of the war, let us all unite in its vigorous prosecution, and in carrying, promptly and triumphantly, the flag of the Union throughout every State, from Richmond and Charleston to Mobile and Savannah. Our next campaign must witness the final overthrow of the rebellion. THE REBEL NUMBERS.