The reasoning, the reflection, the elevated faculties called into action, that are absolutely essential to the cultivation of their products, the varying and complicated soils, their elaborate preparation, the care and judgment needed in gathering them, etc., the still more elaborate processes before they are rendered fit for human sustenance, all this needs the high intelligence, and therefore the large brain, of the white man, and to the isolated negro is impossible, of course. It is true, the master may guide them, and the owner of a hundred negroes in Ohio may carry on these processes and cultivate the soils of the Western and Middle States sometimes, perhaps, when all labor is scarce, with tolerable success. But their inferiority, their lower grade of intelligence, the time and trouble expended in this guidance, must be so palpable to every one who reflects a moment, that the case only needs to be stated to convince them of the relative worthlessness of this labor. And leaving out of view the force of climate, the changing seasons, the sudden frosts which sometimes disable and very generally affect the negro injuriously, and in the end destroy him—leaving all this out of consideration, and contemplating his mere industrial adaptations, it is obvious that the negro can never be, as he never has been, able to cultivate the soils or grow the products of the temperate latitudes. But while the great dividing lines are distinct enough, while the white man and negro, in their industrial adaptations, can never be in conflict when each is within that centre of existence to which the Almighty Creator has adapted and designed him, there is a large extent of territory where they may both labor to advantage, and where time and circumstances may often determine their presence and their fitness for such labor. The white man is forever forbidden by the laws of his organization to labor under a tropical sun, or to grow by his own physical efforts the products indigenous to the tropics. The negro, by the laws of both his physical structure and mental nature, is forever incapable of cultivating the soil or of growing the products indigenous or common to the temperate latitudes. These great elementary and indestructible truths, which, fixed forever by the hand of God, admit of no exception, change, or modification whatever, which time, and circumstances, and human power can not influence, any more than the laws of gravitation, or animal growth, or the term of animal existence, or any other law of the Creator of the universe, will not be mistaken; but when we come to consider the approximating latitudes, then there is a wide field opened up, to our view, to chance, to time, to a multitude of considerations.