An unwieldy mass of semi-barbarism dwelling in the midst of a civilized community, with whom they cannot amalgamate by intermarriage, will, at all times, require a peculiar system of appliances for their improvement, so as to make it consistent with the common welfare. The principle of slavery must, of course, be kept in vigorous operation, and the means of improvement be wisely adapted to the state of the pupil. Otherwise, there may not only be a very improvident expenditure of means, but the most disastrous results. The horn-book might be a valuable agent in the hands of a child, but the instruments and agents in a chemical laboratory might prove its ruin. Should the time ever arrive (which in the opinion of some will be the case, at some distant day) when the progress of African civilization will justify it; and when an asylum in Africa is provided for them--together with the means of their removal in large numbers--I have no doubt that a system of popular education would not only be indicated as proper, but afford one of the most brilliant fields for the display of public and of individual benevolence, that has ever yet presented itself in behalf of that degraded race. But what I have to say of this hypothesis is, that if it ever should, the generations--both North and South--that may then live, I have no doubt, will have both sagacity enough to perceive it, and benevolence enough to improve it to the mutual advantage of themselves and the African race. But it is very evident that neither of these conditions has been fulfilled as yet. In this state of things, it cannot be supposed that the Southern people are prepared for any enterprise of the kind. I cannot imagine that any public movement, having for its object the instruction of the blacks in reading and writing, could be made without involving the most disastrous results.