202 Diseases of the Horse, 



Causes. — Standing in water and filth, such as wet straw 

 and stable refuse; frost bite; irritating applications, or '' stop- 

 pings " to the feet, 



S3^ptoms. — The ap23earance of the frog, especially of its 

 cleft, and the bad odor, are characteristic. There is nearly 

 always tenderness on pressure, and consequent lameness. 



Treatment. — Thrushes are usually easily cured. The ani- 

 mal should be placed in a clean stable, with a dry floor, well 

 littered. The seat of disease should be cleaned, the excessive 

 growth removed, and calomel ap^^lied, as — 



ZSTo. 214. Calomel, ^ oz. 



Sweet oil, 2 oz. 



Mix, spread on a piece of lint or oakum, and insert in the cleft of the 

 frog, and over any other diseased parts. 



The whole should be covered with a layer of wood tar, or 

 a leather shoe may be used for a while with advantage. 



Some veterinarians use caustic pastes, as this, by Mr. 



Youatt : 



No. 215. Sulphate of copper, 2 oz. 



Sulphate of zinc, 1 oz. 



Mix thoroughly with 2 lbs. of lard and one of tar, and every night and 

 morning cover it with a piece of tow, and introduce it into the cleft 



of the frog. 



Another is : 



Kg. 216. Tar, ^ ^ 4 oz. 



Sulphuric acid, J oz. 



This to be applied on tow, as the foregoing. 



Or nitric acid may take the place of the sulphuiic acid in 

 the formula. 



DefinitioiL — A diseased condition of the fros: and sensi- 

 tive sole, resulting in an unhealthy and fetid secretion of 

 horny substance. 



