26 



THE CRANIOMETRY OF SOUTHERN NEW ENGLAND INDIANS. 



MANDIBLE. 



Onlv forty-five mandibles were available for measurement and many of these were frag- 

 mentary. The following, Tables XXII and XXIII, are the measurements taken and their 

 ranges of variation. 



TABLE XXII. 

 Measurements on the Mandible. 



Males. 



Measurement 



Condylar breadth (20) 

 Bi-gonial breadth (26) 

 Breadth of ramus (30) 

 Height of ramus (25) 

 Chin height (29) 



Range of Variation 



84-138 mm. 

 80-116 mm. 

 29- 41 mm. 

 SI- 74 mm. 

 31- 39 mm. 



TABLE XXIII. 

 Measurements on the Mandible. 



Females. 



RELATION OF BASAL FACIAL TO BASAL CRANIAL LENGTH. 



The basal facial length (ba-pr) varies, in the male, from 89 mm. to iii mm.; in the 

 female, from 84 mm. to 104 mm.; the basal cranial length (ba-n), in the male, from 92 

 mm. to 115 mm.; in the female, from 89 mm. to 129 mm. In most cases this cranial 

 length is greater than the facial, but in the case of 18.18% of the females and 9.09% of 

 the males the relation is reversed. In one male and one female, the two lengths are equal. 



When compared with each other, these basal lengths show the degree of prognathism of 

 the skull. If a comparison is made with the Kameruns (Drontschilow) where the pro- 

 gnathism is rather marked, 71.6% have the basal facial length greater than the basal cranial 

 length. Thus, it is exident that, in the case of the New England Indians, the prognathism 

 is slight. 



CRANIAL CAPACITY. 



The measurement of the cranial capacity was made, whenever the skull was complete, by 

 the mustard seed method descrilied by lirdlicka in Science, June 26, 1903. With the skulls 

 which were not measured at the Peabody JSIuseum I used a graduated tube made by Eimer 

 and Amend instead of the one made by Ranke. The Eimer and Amend tube has been 

 found to register 20 cc. to 22 cc. higlicr tlian the Rankc. A control skull was measured 

 before the real one was attempted. 



