But though I think that no war of this kind is to be dreaded, which would make very short work of the blacks, yet one cannot but think that their eventual extermination by moral and economical causes is inevitable. They have from the dawn of history been the chief export of Africa, but have never anywhere been capable of existing in a state of freedom on the same ground as any superior race. The superior race gets possession of all the means of living, all the trades, all the professions, all the land, and the inferior race is thus pushed out of existence. If Congress were to enact, and future Congresses to maintain the enactment, that south of the Ohio and Potomac no white man was ever to do any kind of field labour, or to follow the trades of carpentering or bricklaying, of shoemaking or tailoring, then there would be means provided for the subsistence of the black race, and it might possibly be kept up even in a state of freedom; but as none of these occupations will eventually be left them, their doom is as certain as anything can be in the affairs of men. Already, if a builder introduces into his yard, or places on any work in which he is engaged, a single coloured carpenter or mason, every person in his employ will strike work unless the man of colour, however unexceptionable he may be in his conduct, and however skilful in his trade, is instantly dismissed. All the stevedores at New Orleans were a few years ago of the coloured race. Some whites having taken to the employment, began to insist on the dismissal of all coloured people; and now there is not to be seen a single coloured stevedore on the quays of New Orleans. And just so eventually it must be with field labour. The South must be completely, or at the least largely, cultivated on the Northern farm-system: and then it will be seen that the whites will no more tolerate the companionship of the blacks in field labour than in anything else. A people who have not the means of living must die out, and so emancipation comes to be extinction.