HORSES. 141 



organs of hearing. When these glands become injured 

 by colds, fatigue, &c., the secretions become obstructed, 

 and produce swellings, and suppuration. He recom- 

 mends a stimulant upon the muscles of the ear, as fol- 

 lows : — Put three spoonfuls of finely pulverized flint 

 glass into a bottle containing a pint of urine ; bury it 

 in the ground for three days ; then shake it up, and put 

 one spoonful into each ear of the horse, once a day, for 

 three, four, or five days. He states the cure of a very 

 severe case, from this application, in which the tumor 

 had broken, and become very offensive. After pulver- 

 izing the glass, it should be scronched through very fine 

 cambric or gauze. Perhaps some other stimulant would 

 answer. 



PHRENITIS, OR INFLAMMATION OF THE 

 BRAIN. 



The term staggers used to be applied to this disease, 

 but it is only a symptom of this and other diseases. 

 Phrenitis is produced by a determination of the blood to 

 the brain. 



Causes. Change from poor to high feeding and rich 

 pastures, over-exertion in close, sultry weather, espe 

 cially in fat, high-fed horses, lately accustomed to only 

 a little labor. It sometimes results from other diseases, 

 or a change of inflammation from one organ to another ; 

 it may suddenly leave the bowels, lungs, or other parts, 

 and attack the brain. But it is usually caused by a 

 diminution of the excretions which produce costiveness 

 and induration of the contents of the intestine, and a 

 strong flow of blood to the head. 



Symptoms. Hanging of the head, dulness, watery 

 eyes, reeling of the body, and sleepiness. While eating, 

 the animal becomes lethargic, droops his head, with the 

 tongue hanging out and saliva dribbling ; and he will 

 stagger and almost fall. If aroused, he stares around, 

 and then slumbers again. If he faUs, he will start up 

 as though frightened, wander about, stagger and fall 

 again. 



This nay continue some hours, or a day, and then the 



