iirdlitka) 



PHYSICAL ANTHROPOLOGY 



273 



Eskimo Crania: Dimensions of the Orbits in Relat1*on to Those of the 



Face — Continued 



orbital breadth versus facial breadth 



Individual variation in the orbital index of the Eskimo is ex- 

 tensive, reaching from slightly below SO to well over 100. It ex- 

 tends more or less over the whole Eskimo area, without convej'ing 

 definite indication anywhere of either a mixture or of a special evolu- 

 tionary tendency. Yet it occasions group differences that eventually 

 might prove evolutionary, though they may merely represent the 

 next or higher order of variability, namely, that of groups within 

 a family. 



Orbital Dimensions and Index in Eskimo Skulls 



