658 EEPOET — 1893. 



10. Maximum Aniero-posterior Length of Cranium. 



11. Maximum Transverse Breadth of Cranium. 



12. Proportions of the Head. — (a) The Cephalic Index, calcalated from 

 the length and breadth of each head measured, varies from 71'6 to 83 in 

 the males, and from 74-9 to 88-6 in the females. 



According to the International Divisions of ihe Cephalic Index, the 

 classification is as follows : — 



(6) The Module of the Cranium, -which is obtained by adding its length, 

 breadth, and height together, adding to the product 15 mm. to represent 

 the projection from the auditory meatus to the bases in the case of males 

 and 13 mm. for females, and dividing the total suiii thus obtained by 3. 

 It is as follows : — 



(c) The Total Head Breadth-length Index, or the relation which the 

 maximum breadth of the cranium bears to the vertical length of the head 

 (vertex to chin), the latter being taken as 100, is 70-6 in the males and 

 68-5 in the females, estimated from the corrected mean lengths of the 

 respective measurements. 



(d) The Maxivium Granial Length to total vertical head-length (=100) 



