288 THRUSH. 



in the stronger solution of the chloride of zinc, and 

 spread over that portion of the foot, with more dry 

 tow placed upon that. A sudden change will, by this 

 application, often be eifected ; but, should not this 

 take place to the desired extent, the use of the butyr 

 must be for a while resumed. 



The secret of the treatment of canker consists in 

 the use of superficial caustics or stimulants ; pressure 

 as firmly and equably as it can be made ; and the care- 

 ful avoidance of greasy applications, or of moisture, 

 either applied immediately to the foot, or suffered to 

 penetrate to it through the dressing. The solution of 

 chloride of zinc is an exception to this last rule ; for 

 it corrects the exudation from the foot ; stimulates the 

 sensitive parts to the secretion of healthy horn, while 

 the small quantity that need be used will be far from 

 supplying constant moisture. 



If wet can certainly be avoided, a horse with a can- 

 kered foot will, immediately after the first apparent 

 growth of good horn, do much better at work than 

 standing idle in the stable. 



As canker, however, is a constitutional disease, 

 local applications must not be singly depended upon. 

 It is often connected with grease ; also with grossness 

 of body. The condition of the horse must be con- 

 sidered, and those measures adopted which are cal- 

 culated to improve the system. 



THRUSH. 



Thrush, oftener found in the hind feet than in the 

 fore ones, is recognized by a ragged state of the frog, 

 from the cleft of which there exudes an offensive 



