26 EATIOXAL HOJISE-SHOEING. 



sion at the frog, or scratches torment the 

 heels. 



When simple contraction — shown in the 

 narrow heel, dried and shrunken frog, and 

 " pegging " motion of the horse — is the case, 

 our desio:n is at once to restore the natural ac- 

 tion of the foot. This must be done by ex- 

 pansion, and that is to be had from frog-pres- 

 gure, according to the directions in the pre- 

 ceding chapters. If navicular disease has 

 commenced, and the animal is decidedly- 

 lame, we have a difficult case. The mem- 

 brane of this important bone, in some cases 

 of contraction, becomes ulcerated, and the 

 bone itself may be decayed, or adhesion 

 between the coffin-bone and the navicular 

 and pastern may take place. Without ex- 

 pansion there is no possibility of relief; 

 local bleeding, poulticing, and all the drastic 

 drugs of the veterinary will be invoked in 

 vain. 



QUARTES AND TOE CRACK. 



This disease, usually attributed to " heat," 

 " dry weather," " weak feet," etc., is one of 



