By Mr. Storer Bennett. 



119 



been filled up. The right wisdom tooth and left first premolar have 

 probably been lost since death, for, although these teeth are missing, 

 their sockets remain. The left wisdom tooth has been lost during 

 life, and its socket filled up by new bone. 



The teeth have been subject to much attrition during life, the 

 enamel being entirely worn away on the masticating surfaces, 

 leaving a margin of enamel enclosing a cup-shaped surface of dentine 

 from the unequal rate of wear of the two substances. In the centre 

 of this surface in the four incisors the calcified remains of the denti- 

 nal pulp is distinctly seen. The right incisors have, indeed, been 

 so worn that the enamel has almost disappeared ; the inference being 

 that the food was of a very hard character, and probably mixed 

 with much gritty material. A very small deposit of tartar occurs 

 on the two bicuspids, and there is a slight cupping of the alveolus 

 from absorption around the right one. 



No. 17. Lower jaw of great breadth, the ascending rami being 

 considerably deflected outwards. The measurements are : — trans- 

 versely across the two sigmoid notches, 4£in. ; antero-posteriorily, 

 *3f in. ; the coronoid processes rise about |in. above the highest 

 point of the condyle. ■ 



The teeth show the same general characters as to wear that were 

 noted in No. 16, though to a less extent, the specimen being ap- 

 parently taken from a younger subject. The teeth present are the 

 four incisors, left canine, bicuspids and first molar, and the second 

 molar of the opposite side. The right second premolar and both 

 wisdom teeth, though absent, have apparently been lost since death, 

 for their sockets are present and unaltered in character. The 

 posterior socket of the left second molar remains, but the anterior 

 socket has been filled up, showing that this tooth was either injured 

 or diseased during life and the anterior root lost, its alveolus became 

 absorbed, and the space for this root filled up with new bone. The 

 corresponding tooth on the opposite side (the right second molar), 

 was also lost during life, and its socket similarly removed. The 

 bone in the situation of the right canine and premolars is so damaged 

 that no inference can be drawn as to the condition of these teeth. 



The teeth themselves are incrusted with small masses of tartar, 



