152 



of the incisor teeth, and has even been obliged to 

 remove a portion of the lower jav7 in order to procure 

 relief. Other practitioners, of whom inquiry has 

 been made, have not known such a form of disease, 

 neither have I witnessed it : instances of this kind, 

 therefore, are rare, and hitherto have not attracted 

 attention. The honour of making known the pos- 

 sibility of their existence, belongs to a gentleman 

 whose name is proudly associated with the science 

 which it has so long adorned. The incisors of the 

 colt are not, however, liable to be seriously affected : 

 when those teeth decay, age must have advanced. 

 During colthood, nevertheless, the teeth, if exempt 

 from disease, may be the causes of great consti- 

 tutional disturbance. Mr. Percival, the gentleman 

 who, as editor of the " Veterinarian," and author of 

 the best and most elaborate works on the diseases 

 of the horse that have yet appeared in the English 

 language, attaches much importance to those ailments 

 incidental to dentition. Of the consequences that 

 may ensue from the cutting of the tushes, he adduces 

 positive proof, and from his admirable work on 

 " Hippopathology," page 172, vol. 2, I cannot for- 

 bear extracting the following most valuable case : — 



