App. I. 



DniENSIONS. 



451 



had tlieir appulse. The trenchant, or transversely 

 wedge-like, growth of the socketless incisive border 

 of the mandible, rising between the upper canines, 

 when the mouth is shut, has been already noticed as 

 the peculiar feature of the joresent mandible. 



MEASUREMENTS OF THE THREE SKULLS. 



24. 



57. 



96. 



Horizontal circiimferenf?e of cranium 



From one auditory meatus to tlie other oyer vertex... 



Long diameter of cranium, outoi.le 



Greatest transverse diameter, outside 



From anterior edp^e of foramen magnum to tliat of 

 tlie premaxillary alveolar border J 



From anterior edge of foramen magnum to hindmosf) 

 part of occiput / 



Lengtli of skull, fjoni preniaxill.nry alveolar border to 

 line dropped from liindmost part of occiput 



Breadth of lower jaw, througli angles 



Longitudinal diameter of cranium, inside 



Transverse diameter of cranium, inside 



Height of cranium, inside 



Length of foramen magnum 



Breadth of foramen magnum 



Htight of alisphenoid in a straiglit line from foramenl 



ovale / 



Breadth of alisphenoid, upper border 



Breadtli across zygomatic arches 



Transverse diameter of orbit 



Vertical diameter of orbit 



Interorbital space 



Length of nasal bones, in a straight line 



Transverse diameter, mi.ldle 



Transverse diameter, lower portion 



Heiglit of the symphysis of the lower jaw, exclusive \ 

 oi'teeth / 



19 



12 



7 

 5 



9 

 10 



10 

 8 



il 

 2'i 



1 11 



11 



10 

 3i 



5i 



1 3 



in. lines. 



IS 3 



12 2 



6 1 



5 



4 1 



2 



9 



8 



10 



^ 







1 11 



lOi 

 7 

 G 

 3 



II 



10 



11 



