The modern slave trade, carried on so extensively by the English of our day, where these people, under various pretexts, are placed aboard ships and sent to Jamaica, and other West Indian Islands, to supply the place of the abandoned negro, must be a far greater wrong than the importation of negroes from Africa, for it is a violation of the laws of climate that must rapidly destroy them, while in the case of the negro he is still within that centre of existence, where God himself placed him. The Malay, too, is in his own centre of life, and like all the inferior races, never migrates from it. The Esquimaux, buried in the bleak and desolate North, never ventures beyond it, and should he be carried into the tropics by the white man, would doubtless soon succumb under its burning suns. We know but little of the Indian or aboriginal in these respects. They now constitute the industrial forces of Mexico, and, except Brazil, of all South America. There are some ten millions of them, and as we know that the negro never can labor on the table-lands, or live at all in an atmosphere several thousand feet above the level of the sea, it may become a question of immense importance to the civilization of this continent to determine the natural position and our true relations to this race. The negro, more distinctly, perhaps, than any other race, is limited to his centres of life. If Dr. Kane had taken any with him in his Northwest explorations, it is hardly possible that they could have lived through it, if of pure negro type. His organic structure, while as perfectly adapted to a tropical climate as the eye is to sight or any other organism to a given purpose or function, utterly forbids him to live beyond a certain latitude. An individual may do so, of course, or a generation or more may linger out a miserable existence, but his structure forbids that he should multiply himself or become a permanent resident in the extreme north. There are great numbers in Canada, the result of that wide-spread ignorance of his true nature that has worked out such tremendous evils to these poor people as well as to the deluded and mistaken whites. Their situation in Canada is the most miserable, perhaps, that human beings can possibly endure. It would be miserable enough if they had masters, guides, protectors, and providers for their wants, but, without these, with none of the external circumstances with which God surrounded them when He first called them into being, and then left to compete with white men for the means of subsistence, it is repeated that their condition must be the most deplorable to which unhappy human creatures could be subjected. The constant accession to their numbers through the Underground Railroad renders any thing like an estimate of the fatality among them quite out of the question, but when, in addition to their abnormal social condition, there is the pressure of an unnatural climate or of external