﻿NO. I 



NATIVES OF KHARGA OASIS HRDLICKA 



53 



better than the circumference or any other single dimension. When 

 its relations to cranial capacity are better known, the cephalic module 

 will serve capably, particularly in the form of its averages, as an 

 index of the size of the brain. 



The conditions shown by the Kharga Oasis men in regard to the 

 cephalic module are given in the next table. The average is per- 

 ceptibly smaller than that of the central or north Europeans, and 

 also smaller than that of the majority of the tribes of the Indians. 

 Some details concerning this point will be given in succeeding 

 paragraphs. The range of variation is moderate, extending over 

 17.5 mm., which equals the variability of 0.057 P er centimeter of the 

 mean. The distribution of the module gives two fairly separate and 

 distinct modes. 



KHARGA OASIS, MEN: CEPHALIC MODULE. 1 



Number of observations : 150. 



Average: 15.4cm. 2 (1st 50: 15.45; 2d 50: 15.31; 3d 50: 15.45cm.) 



Median: 15.38 cm. Modes: 15.25 (15.21-15.3) and 15.55 (i5-5i-i5-6) cm. 



Minimum : 14.43 cm. Maximum : 16.18 cm. 



Table of frequencies : 





VO 



r>. 



00 



On 



h- 1 



hH 



01 



CO 



•** 





4 



tj- 



rf 



Tf 



IO 



IO 



10 



10 



m 

























§s 



LB 



L B 



M B 



L B 



L B 



L S 



L B - 



1 g 





S, u 



vo o 



t^ 



00 



On 







M O 



01 



CO 





pq 



^ 



Tf 



-* 



rr 



10 



■LO 



10 



10 





M 



1-1 



M 



1-1 



1-1 



1-1 



hH 



1-1 



Number of cases. 



1 



I 



2 



5 



10 



10 



15 



17 



15 



Per cent 



0.7 



0.7 



1.3 



3.3 



6.7 



6.7 



10.0 



11.3 



10.0 





m 



vo 



t>. 



00 



ON 





M 



01 





10 



10 



u-> 



10 



IO 



vo 



VO 



VO 





Tt- U 



1 g 



IT) (J 



M B 



VO U 



in S 

 r^ 



in S 



00 O 



On 



L B 

 



HH U 





to 



IO 



10 



IT) 



u-) 



10 



VO 



vo 



Number of cases 



13 



18 



15 



14 



6 



3 



2 



I 



Per cent 



8.7 



12.0 



10.0 



P.J 



4.0 



2.0 



2.J 



2.0 







1 Diameter antero-posterior max. + diameter lateral max. -f- auricular line — bregma height 



3 



2 Probable error = ± 0.018; standard deviation, <r, =0.3312, ±0.013; co- 

 efficient of variability, C, =2.151, ± 0.084. 



The size of the head, expressed by the module or in any other 

 manner, possesses in the whites and in other races, as is well known, 

 certain relations to stature. This relation is not the same for all the 

 different statures found in any group, nor is it equally proportionate to 



