“Had a Roman geographer of the days of the Empire,” it has been well observed, “advanced in a straight line from the Atlantic to the Pacific, he would have traversed the exact succession of races that is to be met in the same route now. First, he would have found the Celts occupying as far as the Rhine; thence, eastward to the Vistula and Carpathian mountains, he would have found Germans; beyond them, and stretching away into Central Asia, he would have found the so-called Scythians,—a race which, had he possessed our information, he would have divided into the two great branches of the Slavonians or European Scythians, and the Tartars and Turks, or Asiatic Scythians; and finally, beyond these, he would have found Mongolian hordes overspreading Eastern Asia to the shores of the Pacific. These successive races or populations he would have found shading off into each other at their points of junction. He would have remarked, also, a general westward pressure of the whole mass, tending toward mutual rupture and invasion,—the Mongolian pressing against the Tartars, the Tartars against the Slavonians, the Slavonians against the Germans, and the Germans against the Celts.” Although the early history and migrations of the Slavonians are involved in greater obscurity than that of either of the other two great branches of the European population, it is erroneous to suppose that they are a recent accession out of the depths of Asia. It was evidently a branch of them that Herodotus describes as peaceful, pastoral, and agricultural tribes located near the shores of the Black Sea. Instead of entering Europe _via_ Asia Minor and the southern borders of the Euxine, as many of the Celtic and Teutonic tribes did, they appear to have taken the route by the north of the Caspian and Black Seas, and probably advanced southwards into Europe on the gradual and ultimately sudden subsidence of the waters of the inland sea which primevally stretched from the Baltic eastwards to the Sea of Aral. This race, which now constitutes the largest ethnographical unit of population in Europe, numbering nearly eighty millions, has never yet been examined in rigorous detail. The earliest and best developed of its tribes is the Polish, which, though it has in recent times been subjected by the Russo-Slavons aided by the German powers, has not yet lost its nationality; and it is probable that, in the course of the future, the mighty Slavonic race will yet give rise to several distinct states. Both in features and complexion there is much diversity to be found in the various tribes which it comprises; but, if we consider the immense numbers of the race, and the different climes and temperatures under which they are located, it must be allowed that they are more homogeneous in character than any other people in Europe. The general type of the Slavonians is thus described by M. Edwards:—