VETERINARY DENTAL SURGERY* 127 



of the operation, but I have been much disappointed 

 in not learning the results of the treatment. 



It not infrequently happens that a second and 

 third operation has to be performed, for a tooth 

 again develops in the same place. Should this be 

 the result the opening rarely closes. 



A very interesting case recently came under my 

 observation where a dental cyst had formed just 

 below the ear. The subject was a mare three years 

 old, the property of A. E. Strong, of Vicksburg, 

 Michigan, and had been discharging pus from a 

 cavity the opening of which was one-third the 

 distance from the base toward the apex of the ear. 

 At the time my attention was directed to the dis- 

 eased condition the discharge had existed for about 

 six months, the owner of the mare thinking it would 

 soon heal. A physical diagnosis revealed the out- 

 line of the cyst, which was very superficial and easy 

 to remove. 



The formation of teeth in the various parts 

 which have been mentioned, seem to follow the 

 same general law in their development as those 

 which appear in their proper places. They force 

 their way towards the surface and establish a com- 

 munication in that manner with the external surface 

 of the body. It is self-evident that this action is not 

 the same as that which results from the presence of 

 a foreign substance. Though one of these encysted 



