BY ARTHUR H. CLARKE, M.R.C.S. 



INDEX OF FOEAMEN MAGNUM. 



Ill 



ORBITAL INDEX. 



This average of 52.2 classes these skulls as meso-rhine. 

 Flower, in eight crania, finds a higher average of 53.9, 

 classing his specimens as platyrhine. 



GNATHIC 



Average. Minimum. 

 105-6 102-0 



lori lOl-O 



104-1 loro 



The Females are mesognathous, but the males progna- 

 thous. The average index in our specimens, 104.1, is 

 lower than that in six specimens measured by Flower, in 

 which it is 105.0. 



Maximum. Class. 

 109-6 Prognathous 

 101-1 Mesognathous 

 109-6 Prognathous 



