It is the same with all the other products common or indigenous to temperate latitudes. They all demand the highest capacities for their cultivation. The nature of the soils, the fitness of particular products to particular soils, the periods of growth, of ripening, the influences of the atmosphere, the action of heat and cold, the change of seasons, etc., are all in harmony with the elevated faculties, while the result, their cultivation and uses, are all essential to the welfare and happiness of the white man. The industrial adaptation is complete, the varying soils, often widely different on the same farm, the numerous regulations, the multiplied relations and connections involved, the changing seasons and complicated circumstances render the temperate latitudes as absolutely the centre of life to the white man, industrially considered, as the tropics are to the negro, or as any of the simpler forms of being are to the localities in which we find them. The industrial and specific adaptation of the negro to his own centre of life is, however, more palpable and demonstrable, for his limited intelligence and more direct relations to external circumstances enable us to grasp the facts involved more readily. The soil of the tropics has little variation, and rarely needs any manure or preparation like those of temperate latitudes. And the indigenous products, those that need care and labor for their cultivation, however luxuriant their growth, are few in number. There are almost innumerable species of fruits that grow spontaneously, and indeed a great number of plants that are nutritious, which need no care or labor, and which the negro, in his isolated or barbarous state, lives on to a great extent. But the great natural products of the tropics, those that are essential to human welfare, which are at this instant the most important elements of modern commerce, and are vitally affecting the civilization of our times, are few in number, and need only the lowest grade of intelligence for their cultivation. Cotton, for example, needs but little beyond planting and picking, and sugar, so far as the labor is concerned, is even more simple. It is true, in the complete elaboration and final perfection of these products, the manufacture, etc., the highest order of intelligence is called into action, but this has no necessary connection with the negro. Cotton is shipped to the North or Europe, and passes altogether into other hands, and though the negro labor was vital in the preliminary stages, it has no more connection with the ultimate disposition of this material than the labor of mules that were employed to prepare the earth for its original cultivation. Coffee, tobacco, indigo, etc., are all equally simple, all in accord with the simple soils, the uniform atmosphere, the primitive laws of development, as they may be termed, and in perfect harmony with the grade of intelligence, the specific nature and industrial adaptation of the negro.