EOAEING. 279 



ROAEING. 



Eoaring, like Broken "Wind, is not of itself a disease ; it is 

 symtomatic of disease resident within certain of the respiratory 

 organs and structures. It is not my intention to enter into 

 any very elaborate details with respect to this peculiarity of a 

 disease. I shall simply consider the most prominent essentials 

 with regard to it. 



Causes op Eoaei:n'g. — The causes of Eoaring are naturally 

 divisible into two classes, viz : — remote and proximate. The 

 remote causes are those of an hereditary nature, and those 

 which relate to peculiarity of conformation and to the sex 

 of the animal. It is a well known fact that colts, whose 

 sires were roarers, are frequently ajffected in a similar manner. 

 Also, that geldings are more frequently affected with Eoaring 

 than mares, and that tall, leggy horses are far more prone to 

 the affection than horses of small but compact stature. 



The proximate causes are numerous. Sometimes Eoaring 

 can be clearly traced to a severe attack of Laryngitis, or an 

 attack of Common Catarrh, or of Strangles ; in other cases it 

 is difficult to assign a direct cause of any kind. To the astonish- 

 ment perhaps of both owner and everyone having to do with 

 the case, a horse is suddenly discovered to be a roarer, which 

 previously had never been heard to manifest anything of the 

 kind. Horses required for great speed, such as hunters and 

 race horses, are occasionally found to have become roarers in a 

 very sudden, and seemingly inexplicable manner ; the cause 

 in all probability, however, depending upon a sudden paralysis 

 of one or more of the larjTigeal nerves. I knew a case of a 

 post horse that was once driven as fast as he could be made to 

 gallop for a distance of four miles, and the animal ever after- 



