OF TflE 



ft UNIVER 

 ANATOMICAL PECULIARITIES OF TEE^fr^ 203 



preserved in the museum of the Royal College of Sur- 

 geons, England, and is figured below. In this specimen 

 (fig. 109) the lower canines have grown excessively, 

 turned backwards, and re-entered the mouth by piercing 

 the integument and the jaw. The right tusk has tun- 

 nelled the bone for a distance of three inches and re- 

 appeared on the floor of the mouth and has described a 

 complete circle. The left tusk, after re-entering the 



FIG. 109. Abnormal growth of the lower canines of a Boar. 



mouth, seems to have crossed the buccal cavity so that its 

 apex rests on the inner side of the right lower jaw. 

 This is by no means an unique specimen, for on inquiry 

 I have come across numerous examples of this aberrant 

 growth of the lower canines of boars. The excellent 

 museum of the Veterinary School at Alfort has a speci- 

 men resembling that of Cheselden. I have a canine of 

 this character from a boar which measures thirty centi- 



