conquest is dragging into the circle of modern industry, and even into great industry, certain notable portions of the country beyond the Caspian, as an outpost of the approaching acquisition to the sphere of capitalism of Central Asia and Upper Asia. The gigantic mass of China appeared to us but a few years ago as motionless in the hereditary organization of its institutions, so slow is every movement there, while for ethnic and geographical reasons almost all Africa remained impenetrable, and, it seemed, even up to the last attempts at conquest and colonization, that it was destined to offer only its borders to the process of civilization, as if we were still in the times not even of the Portuguese, but of the Greeks and Carthaginians. These differentiations of men on the track of written and unwritten history seem to us easily explicable when they can be referred to the natural and immediate conditions which impose limits upon the development of labor. This is the case with America, which up to the arrival of the Europeans had but one cereal, maize, and but one domestic animal for labor, the llama, and we can rejoice that the Europeans imported with themselves and their tools the ox, the ass and the horse, corn, cotton, sugarcane, coffee and finally the vine and the orange tree, creating there a new world of that glorious society which produces merchandise and which with an extraordinary swiftness of movement has already traversed the two phases of the blackest slavery and the most democratic wage system. But where there is a real halt and even an attested retrogression, as in Western Asia, in Egypt, in the Balkan Peninsula and in Northern Africa,--and this arrest cannot be attributed to the change of natural conditions,--we find the problem before us which is awaiting its solution from the direct and explicit study of the social structure studied in the internal modes of its development, as in the interlacings and complications of the different nations upon that field which is ordinarily called the scene of historic struggles.