202 The Management and Treatment of the Borse, 



casioned by violent exercise, the pressure of air rushing 

 through the circumscribed space, the sound is produced 

 (in much the same manner that a boy makes a noise 

 through a lark-call) which has been absurdly called 

 " roaring." The practice of what is termed coughing a 

 horse to ascertain the state of his wind is apt to cause 

 this complaint ; this is performed by subjecting the 

 larynx or trachea to violent pressure by squeezing with 

 the fingers. A horse so affected may be considered as 

 decidedly unsound. In this disease there are little 

 reliable remedies to be had ; blisters have given relief, 

 but after a horse has once become a confirmed " roarer " 

 nothing we can do will cure him. When, as it some- 

 times happens, this disease has been of the character to 

 threaten suffocation, the part supposed to cause the 

 difficulty of breathing by obstructing the passage of the 

 air has been cut down upon, and a portion of one of the 

 rings of the windpipe cut out and a breathing tube 

 inserted. This is one of the first operations I ever 

 recollect seeing my deceased father perform ; this was 

 cutting a horse's throat to save its lite. 



INFLAMMATION OF THE LUNGS. 



Of all the diseases incidental to the horse, there is 

 none which we have more to dread than inflammation 

 of the lungs ; it is the most prevalent, and at the same 

 time the most fatal. Sometimes this disease comes on 

 so suddenly that the horse is almost dead before the 

 attack is discovered. Many horses are left at night to 

 all appearances well, and in the morning are found 



