The structure of the Polar Eskimo genealogy.

The structure of the genealogy of the Polar Eskimos from the Thule District of North Greenland is studied by a variety of computational and graphical means, some of them novel. It is shown that although the level of inbreeding in the population is low, the genealogy is intricately connected, as if conforming to the requirement that spouses are as unrelated as is possible in a small population.     

Morphologic characteristics of the Alaskan Eskimo dentition. II. Carabelli's cusp

A study of coastal and inland Alaskan Eskimos revealed that a faintly developed Carabelli's cusp was present in 42.7%. No sex difference in the occurrence of Carabelli's cusp was evident and no family showed any difference in the distribution of the frequencies when each family was compared to the rest of the population. A general tendency toward a higher prevalence of Carabelli's cusp in the coastal Eskimos may be due to more admixture with white people along the coast. Alaskan Eskimos have a significantly higher frequency of Carabelli's cusp than do Aleuts. Statistical evaluation revealed that in the Alaskan Eskimo dentition the formation of Carabelli's cusp is independent of the size of the molars and the suppression of the third molars.