HKDLICKA— CHIPPEWA ANTHROPOLOGY 



HEIGHT OF HEAD 

 Biauricular line (floor of meatus) to Bregma 



Males Females 



Cm. Per cent Per cent 



12.7-13.0 6 15 



I3-0-I3-5 25 63 



13.6-14.0 50 22 



14.1-14.5 13 



14.6-14.9 6 _^^_ 



Average 13.78 cm. 13.36 cm. 



Minimum 12.9 cm. 12.7 cm. 



Maximum 14. 9 cm. 13.9 cm. 



Old-American whites 13.8 cm. 13.3 cm. 



Cephalic Module, or Mean Diameter 



The size of the head, though apparent from the three main indi- 

 vidual measurements of the vault, is best expressed by the mean 

 diameter or cephalic module ( L - + b. + h.) -phe module of the 



Chippewa averages in the two sexes, respectively, 16.49 and 15.84 

 centimeters, which is about what is obtained in tall whites, and 

 exceeds the cephalic module in any other Indian tribe hitherto 

 measured by the author. 



CEPHALIC MODULE Males Females 



Cm. Per cent Per cent 



i5.OI-i5.50 .. 12 



15. 51-16.OO 6 64 



16.OI-16.50 47 21 



16. 5I-I7.OO 41 2 



17.01-17.53 6 .. 



Average 16.49 cm. 15.84 cm. 



Minimum 15-73 cm. 15-33 cm. 



Maximum 17-53 cm. 16.53 cm. 



Old-American whites 16.30 cm. 15.60 cm. 



An even more precise method of showing size of head in a given 

 group is by determining the per-mille relation between the mean diam- 

 eter of the skull and the stature. Among white Americans this rela- 

 tion is approximately as 94 to 1,000 in the males, and 97 in the females; 

 in other words, there are respectively .94 and .97 millimeters of 

 mean head diameter to each centimeter of body height. Among the 

 Chippewa similar proportions are 96 in males and 101 in females, 

 showing that the external dimensions of the head in the tribe are 

 actually slightly larger than in the whites of this country. Neverthe- 

 less, the brain of the Chippewa, as already mentioned, averages prob- 

 ably smaller than that of these whites, owing not only to a possible 

 excess of the soft parts surrounding the skull in the Indian, but also 



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