THE TEETH. 21 



cavity in a rounded form. The inferior edge of the body has a rounded 

 form. On its left side is seen a considerable exostosis, quite rough and 

 irregular, about the thickness of a man's wrist, and projecting from two to 

 three inches. 



THE TEETH. 



The teeth are two on each side in each jaw, making in the whole eight 

 teeth. The outer edge of those in the upper jaw projects beyond that of 

 the lower ; consequently, detrition has taken place on the outer edge of the 

 lower dental surface, and inner edge of the upper. The direction of the 

 teeth, and that of their alveoli, are obliquely forwards ; all of them are 

 tight in their sockets, and, of course, we are able only to examine their 

 crowns. Those in the upper jaw, taken together, are eleven inches long on 

 each side ; those in the lower, rather more. They measure transversely 

 nearly four inches. 



The posterior tooth in the upper jaw has four ridges and a posterior 

 eminence, or heel. The ridges are each subdivided into two mastoid 

 processes, and a single posterior mastoid eminence terminates the longitu- 

 dinal line of division separating the other processes. 



The anterior tooth has two transverse furrows, making three ridges, 

 which are subdivided by the longitudinal line into six nipples. Those of 

 this tooth are very much worn, in some parts of them an inch being worn 

 away, exhibiting the internal bone or dentine of the tooth. The thickness 

 of the enamel is about the eighth of an inch. 



The teeth of the lower jaw correspond nearly with those of the upper. 

 A small part of the anterior tooth of the lower jaw has disappeared, appa- 

 rently having been worn away. 



