no CAUSES OF UNSOUNDNESS. 



case, the horn is of a bright red discolouration, 

 whereas, in the latter, it turns yellowish black. If 

 the corn becomes infected with organisms of suppura- 

 tion, matter forms, and the so-called festering com 

 is the result. Bruises occur upon other parts of 

 the sole, though less significance need be attached 

 to them. A corn is a common cause of lameness, 

 requiring careful shoeing in order to keep the 

 animal sound. If suppuration becomes established, 

 and due attention is not paid to this, it may 

 break out at the top of the coronet, giving rise to 

 a very troublesome condition known under the 

 name of " quittor." When a horse has low, weak, 

 or thin heels, it is predisposed to bruising of the 

 sole. The same remark applies to one having a 

 flat sole. 



Flat or Dropped Sole. 



When a horse has been foundered, or had fever 

 in the feet, as it is called, there is a tendency for 

 separation to occur between the inner wall of the 

 hoof and the sensitive laminae on the pedal bone, 

 separation allowing the latter to descend, pushing 

 the horny sole in front of it as it does so. In ad- 

 vanced stages of the disease, the bone may come 

 through the sole, rendering the horse useless. This 



