220 AMERICAN ANTHROPOLOGIST [N. s., 18, 1916 



increase from the adolescent length average of 175.6. It will be 

 noted here, as elsewhere, that the female approximates the adolescent 

 type. 



The well-known extreme length of head of the Eskimo is fully 

 realized in this western group in the male series which attains an 

 average of 189.1, which is as high as that of the purest central type 

 (Southampton island, 189). There is considerable individual vari 

 ation in the Point Barrow group, 182/196, which, however, is less 

 than that of the central group, 179/204 for a smaller number. This 

 phase has been dealt with by itself. It is not significant here, 

 except to illustrate the fact, that with the supposedly purest groups 

 of a racial type there is a large individual variation. 



The average length of the female skulls in our series is much 

 less, 178.6, and the range of individual variation smaller, 173/182; 

 which, taken in conjunction with the above-mentioned tendency 

 to constancy of breadth of head, places them well within the limits 

 of mesocephalic skulls. It should be borne in mind, however, that 

 this is a result of the lessening of the extreme length of head in the 

 female sex and not a consequent broadening. As will be shown in 

 later tables, the females have not acquired in proportion to the 

 breadth of head, the extreme breadth of face characteristic of the 

 males, while they have preserved other prominent traits, as the 

 narrow nasal aperture, the broad palate, and deep set orbits. 



The narrow-headedness of the Eskimo is well represented in 

 the Point Barrow skulls. The average width, 137.3 f r males and 

 136.8 for females, is less than that of the Southampton island 

 Eskimo, 140 in males and 137 in females, but close to that of the 

 Mackenzie Eskimo, 137 (Russell). There appears to be a tendency 

 for the width of the head to decrease toward the west from the central 

 region, which probably goes with a decrease of the width of face, 

 until the broad-headed Aleutians are met with. Nevertheless, 

 the racial tendency of the Eskimo toward a long, narrow head is as 

 evident among the males in the west, as among the Eskimo gener 

 ally in the east. 



As might be expected from the extreme length, the cephalic 

 index of the males, (72.65) shows a well-marked tendency toward 



