In another place the subject of climate and industrial adaptation is fully considered, and it will suffice to remark in this place that the tropics are the natural centre of existence of the negro, and some day not very remote our negro population, with a few exceptions, perhaps, will be found within the intertropical region. And when that day comes, it is quite likely that some modification will be worked out which, while the essential principles of the existing condition are preserved, chattelism, or that seeming personal property in the negro now so extensively associated in the popular mind at the North as wrong, may disappear altogether. We are only just emerging, as it were, into a boundless field for progress, for inquiry, for experiment, for social development, for working out the great problem of humanity. All Europe is in utter ignorance and blindness; and if the whole political and social order is not in conflict with the natural order, the latter, is, at all events, repressed, and forbidden a development. We, ourselves, have reached a comparatively far advanced position—the grand position and declaration of the men of 1776, that all men (of course of our own race) are created equal, and designed by the Almighty for the same liberty, etc.; and we have based our political order on this fundamental and everlasting truth; but while in theory we have thus recognized the relations that nature has decreed between individuals, in practice we have made but little advance over the people of Europe.