88 CAUSES OF UNSOUNDNESS. 



collar on for about an hour after the animal comes 

 in from its work, in this way preventing a sudden 

 chill to the skin. Evidence of a horse having a 

 wasted shoulder (shoulder-slip) is sufficient to en- 

 able the buyer to return the animal, provided this 

 is done within reasonable time, and that the injury 

 has not been produced since the horse came into 

 the buyer's possession. 



Point of the Elbow. 



Not uncommonly there is evidence of trouble 

 in this region, mostly in the form of a tumour, 

 constituting the so-called " capped-elbow." This 

 does not necessarily interfere with the animal's 

 utility, but it would do so if large and acutely 

 inflamed. In the majority of instances it is due 

 to the pressure of the heel of the shoe, produced 

 when the animal is lying down, but occurs quite 

 apart from this. Such a swelhng may come up 

 in a single night and consists of an acute inflamma- 

 tion of the bursa or lubricating sheath at the point 

 of the elbow. Continued pressure gives rise to 

 the production of a solid tumour, removable by 

 an operation only. 



