238 DISEASES OF THE TEETH, ETC. 



panied either by submaxillary tumefactioD or by ulceration of 

 the Schneiderian membrane. For two or three months the 

 case was treated for glanders ; but^ no amendment appearing, 

 a consultation was deemed necessary, the result of which was, 

 the horse was shot. On examination of the head, the third 

 molar tooth proved to be carious; one third of its fang being 

 already consumed, and the remainder rotten. The formation 

 of an abscess within its socket had rendered the tooth loose, 

 and the matter flowing therefrom had established a passage 

 into the contiguous chamber of the nose. The antrum, also, 

 was in part obstructed by the deposition of osseous matter. 

 This is a case which, but for the inquisitiveness of Mr. Cherry, 

 would have indiscriminately merged into that heterogeneous 

 class of diseases passing under the appellation of chronic 

 glanders. 



My father's museum contained several preparations of 

 carious teeth. One was that of a molar tooth, whose interior 

 was black and rugged, from being eroded by ulceration, and 

 whose fangs had from the same cause mouldered away. Two 

 others presented brittle exostoses upon their sides, forming 

 spacious cavities within, and communicating with the con- 

 tiguous grinders. One of them exhibited a perforation 

 through which pus appeared to have issued. They seemed 

 both to have been cases which had originated in internal 

 injury. 



The rarity of such occurrences disinclines one to seek for 

 them; and, especially, since we are not in possession of any 

 sure indications of their existence. Cudding the food, fetid 

 breath and saliva, either with or without any purulent issue 

 from the nose, might lead to an examination of the mouth, 

 and the discoloration of a tooth would prompt us to ascer- 

 tain whether it were loose or not, and, if loose, to extract it : 

 further than this I am not prepared to advise. 



PARROT MOUTH. 



By this appellation horse-people understand what dog- 

 fanciers call "overhung;'' i.e., a mouth so formed — or 

 rather so malformed — that the upper jaw overshoots or pro- 



