HOLMES ANNIVERSARY VOLUME 



to bregma. This is readily taken by calipers slightly modified for that 

 purpose. 1 



The height thus secured averages in white American males 13.8 

 centimeters, and in females 13.25 centimeters; while among Indians, 

 so far as known, its averages range in different tribes between 13.2 

 and 13.9 centimeters in the males, and between 12.8 and 13.4 centi- 

 meters in the females. Among the Chippewa they are respectively 

 13.78 and 13.36 centimeters, and hence are not far from the maxi- 

 mum of the American tribes. But, as will be seen later, this is due to 

 the size of the head in the tribe; relatively to the other two mean 

 dimensions of the head the height is quite moderate. 



The following three tables give the principal data on the height 

 indexes among the Chippewa, while in the fourth are given compara- 

 tive data on the Chippewa, the Indian tribes of the Southwest and 

 Mexico, and the American whites. 2 The most interesting results seen 

 are that in the height-length and especially in the more important 

 mean height index, the Chippewa agree fairly closely with the whites, 

 but stand in both respects perceptibly below the Southwestern 

 Indians. On the whole, however, all three indexes relating to height 

 are slightly to moderately smaller in the Chippewa than in either of 

 the two other groups, showing that the Chippewa head has increased 

 more particularly in the directions of its length and breadth, or in 

 other words that, while absolutely quite high, relatively to the other 

 measurements of the vault its height is only moderate. It is unfortu- 

 nate that we have as yet no adequate series of similar determinations 

 on other Northern and Northeastern tribes. Among the Sioux re- 

 cently studied by the writer, the absolute height of the head is fre- 

 quently quite low, and the height indexes are all lower even than in 

 the Chippewa. 



HEIGHT-LENGTH INDEX 



Males Females 



Per cent Per cent 



65-I-67-5 13 7 



67.6-70.0 57 34 



70.1-72.5 31 37 



72.6-74.3 __ 22 



Average 69.4 70.4 



Minimum 67.0 65.7 



Maximum 72.2 74.3 



1 Compas d'epaisseur Hrdlicka (Collin, Paris). The modification consists of a slightly different 

 bend of the branches, so that when extended to about the usual biauricular breadth, the end 

 portions for some distance from each point are horizontal; and in the provision near each point of 

 a tooth or guard which assures the equidistant introduction of the points into the meatus in each 

 case, and at the same time prevents their introduction so far that they might do damage. 



2 The whites referred to are at least three generations American on each parental side. 



[214] 



