HHDLK'Kl] 



PHYSICAL ANTHROPOLOGY 



283 



(the point where the subnasal slant, begins) ; and the third to nasion. 

 The facial height is that from the alveolar point (lowest point of 

 the upper alveolar border in the median line) to nasion; while for 

 the subnasal height, which can not be measured directly, I utilize 

 the difference between the facial and nasal heights, which is very 

 close to the needed dimension. 



The important basion-nasion diameter has already been considered. 

 That to the subnasal point needs no comment. That to the prealveo- 

 lar point shows in the western and other Eskimo as follows: 



Eskimo Crania : Basion-Prealveolar Point Diameter 



All Eskimo 

 Males: 



Mean diameter centimeters. 



Mean relation to length of skull per cent_ 



Females: 



Diameter centimeters. 



Relation per cent- 



10. 54 

 56.3 



9. 99 



65.8 



MALES 



A = Basion prealveolar point diameter 

 B = Its relation to length of skull 



As in other details, so here there is a remarkable similarity between 

 the skulls from the three large areas, pointing both to the unity of 

 the people and to absence of heterogeneous admixtures. As the 

 skull length increases so does the basi-alveolar line, but the relative 

 proportions of the two remain very nearly the same. 



The relative value of the basi-alveolar length in the males, com- 

 pared to the length of the skull, is in general about 0.5 per cent, 

 higher than it is in the females. This is just about the excess of the 

 relative proportion of the length of the male dental arch when com- 

 pared to the same skull dimension. The general mean skull length 

 in the Eskimo male approximates 18.705. in female 17.899 centi- 

 meters; the mean length of the arch is. in the male, close to 5.625, 

 in the female 5.365 centimeters; and the percentage relation of the 

 latter to the former is 30.6 in the males, SO in the females. The 

 relatively slightly greater basi-alveolar length in the males is evi- 

 dently, therefore, at least partly due to the relatively longer male 



