128 



I/OW TO TELL THE AGE. 



siderably pendant. This treatment is called " Bishoping," from the 

 name of the man who introduced it in England, and is practiced 

 very largely by jockeys in the larger cities of this country, espe- 

 cially in New York. 



Fig. 392.— About Eleven Years of Age, 



Fig. 393.— Mouth of the 

 Mare at Thirteen Years. 



I wish to call attention to the fact that horses, 

 especially those advanced in years, are liable 

 to have the teeth in wearing overlap one an- 

 other, become very rough, and wound the inside 

 of the cheeks ; or the grinders become irregular 

 in length when they do not come opposite each 

 other in shutting, or the teeth become carious 

 and break away when not correspondingly worn 

 with the others, shoot up to a degree to pene- 

 trate the jaw, causing soreness and inflamma- 

 tion, and seriously interfering with eating. 



The writer saw a very interesting case of 

 this kind at the Columbia Veterinary College, 

 in which the unobstructed tooth had seriously 

 penetrated into the upper jaw. In the endeavor 

 to relieve the pressure of the parts, the animal 

 evidently masticated the food wholly upon the 

 opposite side of the mouth ; in consequence of this the teeth on this 

 side were so worn down that both upper and lower jaws were 

 twisted around more than an inch out of line. 



Sometimes caries, or ulceration of a tooth, produces such serious 

 disturbance that there may be an enlargement of the parts, growth 

 of fungus, or necrosis of the parts. This, too, is much more com- 

 mon than is suspected. Prof. Cressy, of Hartford, called my atten- 

 tion to a case in which a back tooth in the lower jaw became ulcer- 



FiG. 394.— Mouth of the 

 Mare at Thirteen Years. 



