1905-6.] 
Report on Tiuo Crania. 
309 
ramus. It is quite a commonplace jaw, with nothing to distin- 
guish it from the modern mandible. The three molars of the left 
side and the first of the right side are present. There is little 
difference between these teeth in so far as the size of the crowns 
is concerned, but they are all much worn down, and each presents 
a more or less flat, even surface at the summit. Both canines and 
the first premolar on the right side are also present, and consider- 
ably ground down on the crowns. The incisors are absent, but the 
vertical character of the sockets, in conjunction with the corre- 
sponding character in the upper jaw, clearly shows that there was 
no tendency towards prognathism. 
The whole lower jaw is somewhat lightly built in comparison 
with the size of the molar teeth. 
(. Issued separately August 31, 1906.) 
