In Alaska the Eskimo stock is broken into several tribes speaking diverse dialects. Of these, two main subgroups are distinguished, namely, Innuits and Aleuts or Aleutians. The former includes several tribes living on the margin of the mainland, from near Mount St. Elias northward to the Arctic Ocean, and the latter consists of but two tribes, now intermingled, which at the time of the discovery of the Alaskan region by the Russians inhabited the western portion of the Alaskan peninsula and the Aleutian Islands. A detailed account of these peoples should have united with it a study of the so-called Tuski of northeastern Siberia, who are of the same stock, and, as seems probable, are the descendants of Eskimos who migrated from America to Asia. _The Innuits._--This name, as is stated by W. H. Dall, is applied to themselves by all the tribes of the Eskimo stock, except the Aleuts and the eastern Siberian natives. It is in use at the present time from Greenland to Bering Strait, and thence southward to the vicinity of Mount St. Elias. In Alaska the Innuits are divided into at least fourteen tribes, speaking as many different dialects, and distinguished by such names as Ugalakmuts, Kaniagmuts, etc. The termination _mut_, in a substantive sense, means a village at the place or on the river to the name of which it is added (Dall). In common with all other Eskimo tribes the Innuits are a sturdy, well-built people, having lighter-coloured skins than the Indians, and more nearly approaching the yellow of the Asiatics, but distinct from it, and in many instances having a decided reddish tinge to the cheeks. The prevalent idea that the Eskimo is of decidedly short stature is not borne out by the various tribes in Alaska, who are not much, if any, below the average height of Europeans. Their rotund bodies and full, round faces, in which the organ answering to a nose is depressed until between the eyes it is scarcely distinguishable, suggest that the severity of the climate has led to a development of fat for protection against cold in the same manner as among the seals and walruses. Such a generalization is perhaps misleading, as great individual variations occur as among all peoples, but the typical Innuit whose figure remains in one's memory when the bony hags, the cadaverous individuals, and the aged are forgotten or but dimly recalled, favours the conventional pictures of Santa Claus, with a face resembling the full moon, small black eyes with a suggestion of obliquity in their alignment, and nearly complete absence of a beard on the ruddy cheeks.