﻿68 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 59 



The relation between the breadth of the face and the size of the 

 head is such, that in general larger heads will show larger and hence 

 also absolutely broader faces than small ones. But, as the ratio of 

 the cephalic module to the face breadth indicates, being in the nar- 

 rowest faces as 121. 5 and in the broadest as only 112.8 to 100, the 

 face augments at a greater rate than the size of the head. The same 

 condition of more rapid facial growth was shown above in relation 

 to the separate head diameters. And as what is true in this respect of 

 the breadth is also true of the height of the face, it may be concluded 

 that, while in the main correlated in growth with the length and 

 breadth of the head, yet large faces show also a degree of develop- 

 ment independent of these factors. The causes of such growth are 

 probably partly of hereditary and partly of acquired, especially func- 

 tional nature (connected with the use and development of the muscles 

 of mastication). 



KHARGA OASIS, MEN: BREADTH OF FACE IN RELATION TO BREADTH, 

 FORM, AND SIZE OF HEAD 



22 narrowest faces (12.6 cm. and below) 



Diameter 



bizygomatic 



maximum 



cm. 

 11. 8 



12.0 

 12. I 

 12. I 

 12.4 

 12.5 

 12.5 

 12.5 

 12.5 

 12.5 

 12-5 

 12.5 

 12.6 

 12.6 

 12.6 

 12.6 

 12.6 

 12.6 



12.6 



12.6 

 12.6 

 12.6 



Breadth 

 of head 



cm. 



14.0 



13.2 

 13.0 

 12.8 



14. 1 

 13.4 

 13.9 



13.6 



13.6 

 14.2 

 13.6 

 14.2 

 14.8 



13.8 



14.0 



13.8 

 13.4 

 13.5 

 13. 1 



13.6 



14.0 

 13.6 



Cephalic 

 index 



78.6 

 70.7 



73-4 

 70.3 

 75.8 

 70.9 

 72.8 

 73-i 

 71.6 



75-5 

 72.0 



75-5 

 77-i 

 73-o 

 76.1 

 75-0 

 70.2 

 71.8 

 68.2 



75-3 

 76.9 

 71.2 



Cephalic 

 module 



cm. 



I4.80 

 15-02 

 I4.63 

 14-43 

 I5.I8 

 15.08 

 15.27 

 14-95 

 15.22 

 15.20 

 I5.I8 

 15-33 

 15.67 

 15.25 

 15.07 

 15.22 

 15.23 

 15.23 

 14.95 

 15.33 

 15.07 

 15.25 



18 broadest faces (13.7 cm. and above) 



Diameter 



bizygomatic 



maximum 



cm. 



13 



13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 13 

 14 

 14 



Breadth 

 of head 



cm. 



14.2 

 14. I 

 14.9 

 I4.6 

 I4.8 

 15.0 

 14.2 

 15.2 

 13.4 

 14.2 



I4.4 

 14.4 

 14.8 

 14. I 

 I4.4 



14.3 

 I4.6 



14.4 



Cephalic 

 index 



74-7 

 75-8 

 80.1 

 75-6 

 77.1 

 77-3 

 75-i 

 80.0 



7i-3 



77-6 

 71.6 

 77-4 

 77-i 

 73-4 

 75-0 

 76.1 

 76.4 

 74-6 



Cephalic 

 module 



15.68 

 15.00 



15.77 

 15.80 

 15.80 

 15.77 

 15.45 

 15.87 

 I4.98 

 15.32 

 15.85 

 15.27 

 15.78 

 15.37 

 15.77 

 15.52 

 15.67 

 15.62 



Averages : 



12.45 



(11. 8- 



12.6) 



13.7 



(12.8- 



14.8) 



73.4 



(68.2- 



78.6) 



15.12 



(14.43- 



15.67) 



13.8 



(13.7- 



14.0) 



14.45 



(13.4- 



15.2) 



75.9 



(71.6- 

 80.1) 



15.57 

 (14.98- 



15.87) 



