'The existence of such a population among us is a most manifest evil. And every year adds to its threatening aspect. They are more than a sixth of our population! Their ratio of increase exceeds that of the whites. They have all the lofty and immortal powers of man. And the time must arrive, when they will fearlessly claim the prerogatives of man. They may do it in the spirit of revenge. They may do it in the spirit of desperation. And the result of such a mustering of their energies--who can look at it even in distant prospect without horror? Almost as numerous are they now, as our whole population when this nation stood forth for freedom in a contest with the mightiest power of the civilized world. And if nothing is done to _arrest their increase_, we shall have in twenty years four millions of slaves; in forty years eight millions; in sixty years sixteen millions, and a million of free blacks;--seventeen millions of people; seven millions more than our present white population;--enough for a powerful empire! And how can they be governed? Who can foretel those scenes of carnage and terror which our own children may witness, unless a seasonable remedy be applied? The remedy is now within our reach. _We can stop their increase_; we can diminish their number.'--[Rev. Baxter Dickinson's Sermon delivered at Springfield, Mass. in 1829.] 'We have a numerous people, who, though they are among us, are not of us; who are aliens and outcasts in the land of their birth. A people whose condition is degraded and miserable; who, so far from adding to our national strength, are an element of weakness, and detract from the amount of human effort. A people, whose condition, while it excites our commiseration, must awaken our fears.' * * 'Those persons of color who have been emancipated, are only nominally free; and the whole race, so long as they remain among us, and whether they be slaves or free, must _necessarily_ be kept in a condition full of wretchedness to them and full of danger to the whites. This view of the subject is rendered the more alarming by the rapid increase of this portion of our population.'--[Second Annual Report of the New-York State Colonization Society, pp. 4, 34.]