HRDLlC'KA] 



THE LOWER JAW 



303 



Breadth of the Rami 



Still another character that reflects the strength of the lower jaw 

 is the breadth of the rami. The most practicable measurement of 

 this is the breadth minimum at the constriction of the ascending 

 branches. A great breadth of the rami is very striking, as is well 

 known, in the Heidelberg jaw, and the Eskimo have long been known 

 for a marked tendency in the same direction. The measurements of 

 the lower jaws of the western Eskimo show as follows : 



Lower Jaws of the Western Eskimo and Other Racial Groups : Breadth 

 Minim rM of the Ascending Branches 



The Eskimo jaws, and particularly that of the female (relatively 

 to other females), have the broadest rami. Otherwise the series 

 range themselves in the same order as under the measurement of the 

 stoutness of the body. 



Other Dimensions 



Four other measurements were taken on the jaws, namely the 

 length of the body (on each side) ; the height of the two rami; the 

 bigonial diameter; and the body-ramus angle. The results of the 

 first three may conveniently be grouped into one table. 



