14 



Diameters of P. m. i.. 



Diameters of M. i,. 



Measurements of Superior Molars. 

 Anteroposterior 



M. 

 .042 



Diameters of M. ii. 



Diameters of M. iii. . 



Transverse 054 



C Anteroposterior 055 



[ Transverse .- 055 



f Anteroposterior 071 



{ Transverse 066 



f Anteroposterior. . 071 



(.Transverse ; • 071 



As already observed, the syviphysis mandibuli is narrowed forwards, and it displays a 

 groove on the middle line between the positions of the alveoli of the canine teeth. The 

 sides of the ramus at this point are vertical, and a little concave above and behind the 

 canine alveolus. In profile the symphysis slopes in an almost straight line from the bifur- 

 cation to the incisive border. There are two mental foramina close together. The anterior 

 is the larger, and is situated a little below the posterior, and is below the anterior root of 

 the third premolar. 



The inferior canine is of moderate size, and the crown is recurved and somewhat acu- 

 minate. The molars are narrow as compared with their length. Their crown consists of 

 the usual two V's, except the anterior part of the third premolar, where the crest is only 

 slightly concave outwards. The fourth premolar is represented by a single small alveolus 

 Anterior to it is a diastema a little longer than its diameter. Excepting on the second 

 premolar, the external cingulum is complete and well developed on all the molars (the 

 last not present). There is a very distinct, short cingulum at the base of the low anterior 

 one of the inner cusps, except on the second premolars. 



Meanwrements of mandibles. 



No. I. 



M. 

 Width between canines at exit from alveoli 027 



Length of premolar series 088 



No- II. 



{Anteroposterior 024 

 Transverse 023 



Length of premolar series . 

 Length of crown of P. m. iv. 



,698 

 ,029 

 038 



{Anteroposterior 

 Transverse 038 



{Anteroposterior 050 

 Transverse 031 



( Anteroposterior 064 



{ Transverse 041 



Depth of ramus at front of M. ii 086 



Diameter M. i. 



Diameters M. ii . 



