the region in question. There are territories where the Aryan can establish fixed settlements by means of the technical skill which he has developed in the course of more than a thousand years, even though these territories would otherwise have to be abandoned, unless the Aryan were willing to wander about them in nomadic fashion; but his technical tradition and his age-long experience of the use of technical means would probably make the nomadic life unbearable for him. We ought to remember that during the first period of American colonization numerous Aryans earned their daily livelihood as trappers and hunters, etc., frequently wandering about in large groups with their women and children, their mode of existence very much resembling that of ordinary nomads. The moment, however, that they grew more numerous and were able