Asia, around the sources of the Jaxartes and Oxus. The reason for the emigration hence was found in the statement that, although Ormuzd had made this country an agreeable abode, Ahriman had destroyed it with frost and snow. In other words, this part of Asia was supposed to have had originally a warmer temperature, which suddenly or gradually became lower, wherefore the inhabitants found it necessary to seek new homes in the West and South.

The view that the sources of Oxus and Jaxartes are the original home of the Aryans is even now the prevailing one, or at least the one most widely accepted, and since the day of Rhode it has been supported and developed by several distinguished scholars. Then Julius v. Klaproth pointed out, already in 1830, that, among the many names of various kinds of trees found in India, there is a single one which they have in common with other Aryan peoples, and this is the name of the birch. India has many kinds of trees that do not grow in Central Asia, but the birch is found both at the sources of the Oxus and Jaxartes, and on the southern spurs of the Himalaya mountains. If the Aryan Hindoos immigrated from the highlands of Central Asia to the regions through which the Indus and Ganges seek their way to the sea, then it is natural, that when they found on their way new unknown kinds of trees, then they gave to these new names, but when they discovered a tree with which they had long been acquainted, then they would apply the old familiar name to it. Mr. Lassen, the great scholar of Hindooic antiquities, gave new reasons for the theory that the Aryan Hindoos were immigrants, who through the western pass of Hindukush and through Kabulistan came to Pendschab, and thence slowly occupied the Indian peninsula. That their original home, as well as that of their Iranian kinsmen, was that part of the highlands of Central Asia pointed out by Rhode, he found corroborated by the circumstance, that there are to be found there, even at the present time, remnants of a people, the so-called Tadchiks, who speak Iranian dialects. According to Lassen, these were to be regarded as direct descendants of the original Aryan people, who remained in the original home, while other parts of the same people migrated to Baktria or Persia and became Iranians, or migrated down to Pendschab and became Hindoos, or migrated to Europe and became Celts, Greco-Italians, Teutons, and Slavs. Jacob Grimm, whose name will always be mentioned with honour as the great pathfinder in the field of Teutonic antiquities, was of the same opinion; and that whole school of scientists who were influenced by romanticism and by the philosophy of Schelling made haste to add to the real support sought for the theory in ethnological and philological facts, a support from the laws of natural analogy and from poetry. A mountain range, so it was said, is the natural divider of waters. From its fountains the streams flow in different directions and irrigate the plains. In the same manner the highlands of Central Asia were the divider of Aryan folk-streams, which through Baktria sought their way to the plains of Persia, through the mountain passes of Hindukush to India, through the lands north of the Caspian Sea to the extensive plains of modern Russia, and so on to the more inviting regions of Western Europe. The sun rises in the east, ex oriente lux; the highly-gifted race, which was to found the European nations, has, under the guidance of Providence, like the sun, wended its way from east to west. In taking a grand view of the subject, a mystic harmony was found to exist between the apparent course of the sun and the real migrations of people. The minds of the people dwelling in Central and Eastern Asia seemed to be imbued with a strange instinctive yearning. The Aryan folk-streams, which in prehistoric times deluged Europe, were in this respect the forerunners of the hordes of Huns which poured in from Asia, and which in the fourth century gave the impetus to the Teutonic migrations, and of the Mongolian hordes which in the thirteenth century invaded our continent. The Europeans themselves are led by this same instinct to follow the course of the sun: they flow in great numbers to America, and these folk-billows break against each other on the coasts of the Pacific Ocean. "At the breast of our Asiatic mother," thus exclaimed, in harmony with the romantic school, a scholar with no mean linguistic attainments—"at the breast of our Asiatic mother, the Aryan people of Europe have rested; around her as their mother they have played as children. There or nowhere is the playground; there or nowhere is the gymnasium of the first physical and intellectual efforts on the part of the Aryan race."

The theory that the cradle of the Aryan race stood in Central Asia near the sources of the Indus and Jaxartes had hardly been contradicted in 1850, and seemed to be secured for the future by the great number of distinguished and brilliant names which had given their adhesion to it. The need was now felt of clearing up the order and details of these emigrations. All the light to be thrown on this subject had to come from philology and from the geography of plants and animals. The first author who, in this manner and with the means indicated, attempted to furnish proofs in detail that the ancient Aryan land was situated around the Oxus river was Adolphe Pictet. There, he claimed, the Aryan language had been formed out of older non-Aryan dialects. There the Aryan race, on account of its spreading over Baktria and neighbouring regions, had divided itself into branches of various dialects, which there, in a limited territory, held the same geographical relations to each other as they hold to each other at the present time in another and immensely larger territory. In the East lived the nomadic branch which later settled in India; in the East, too, but farther north, that branch herded their flocks, which afterwards became the Iranian and took possession of Persia. West of the ancestors of the Aryan Hindoos dwelt the branch which later appears as the Greco-Italians and north of the latter the common progenitors of Teutons and Slavs had their home. In the extreme West dwelt the Celts, and they were also the earliest emigrants to the West. Behind them marched the ancestors of the Teutons and Slavs by a more northern route to Europe. The last in this procession to Europe were the ancestors of the Greco-Italians, and for this reason their languages have preserved more resemblance to those of the Indo-Iranians who migrated into Southern Asia than those of the other European Aryans. For this view Pictet gives a number of reasons. According to him, the vocabulary common to more or less of the Aryan branches preserves names of minerals, plants, and animals which are found in those latitudes, and in those parts of Asia which he calls the original Aryan country.

The German linguist Schleicher has to some extent discussed the same problem as Pictet in a series of works published in the fifties and sixties. The same has been done by the famous German-English scientist Max Müller. Schleicher's theory, briefly stated, is the following: The Aryan race originated in Central Asia. There, in the most ancient Aryan country, the original Aryan tongue was spoken for many generations. The people multiplied and enlarged their territory, and in various parts of the country they occupied, the language assumed various forms, so that there were developed at least two different languages before the great migrations began. As the chief cause of the emigrations, Schleicher regards the fact that the primitive agriculture practised by the Aryans, including the burning of the forests, impoverished the soil and had a bad effect on the climate. The principles he laid down and tried to