FEATURES OF ANIMAL FORM 



39 



is of no concern to the judge himself, it being settled ac- 

 cording to rule by the official veterinarian, but one should 

 lot be wholly dependent upon the veterinarian for the 

 letection and disposition of ordinary unsoundnesses. 



lere is no difficulty experienced in diagnosing bad 

 >yes if the lens has become opaque or the cornea clouded, 

 ret serious conditions may exist in the eye without any 

 such manifestations. These require the skilled practi- 



mer to identify them. A diseased condition of any 

 :anding will result in atrophy or shrinking of the eyeball, 

 just the same as a lame foot gradually becomes smaller, 

 'his reduction in size causes the eyeball to occupy less 

 >ace in the orbit, with the result that it retracts deeper 

 ito the head, and the upper lid, not being distended by 

 the eyeball any longer, looses its even curvature and be- 

 >mes notched with an angle. A widely dilated pupil 

 >r one that does not respond promptly to changes in the 



lount of light admitted, as when the eye is covered with 

 the hand and then quickly exposed again, is suggestive of 

 imperfect vision. 



62. Unsoundness of wind includes the so-called roaring 



id heaves. While roaring may be understood to be any 

 ;ind of noise made in breathing, technically roaring is 

 tade upon inspiration only and is due to the paralysis 

 3f one of the cartilages of the larynx, that cartilaginous 

 >und box with which the trachea or windpipe begins. 



Horses with bullish necks that are thick in the throttle 

 ind have a narrow angle between the branches of the lower 

 jaw may make a distinct noise when pulled, especially on 



curb bit, due to the compression of the larynx. This 

 loise, like that due to pressure from any other cause, is 

 lost noticeable upon expiration and is relieved as soon 



the horse is stopped and the head released, while true 



