106 HOW TO BUY A HOESE. 



hoarse exhalations, the inhalation being noiseless. Eoap 

 ing occurs on sudden motion. 



Wheezing is a modification of roaring, and is produ(;td, 

 it would seem, by the lodgment of mucous matter in the 

 bronchial tubes. It differs from roaring, in that it exists 

 even when the animal is wholly at rest, and in his stable. 



Whistling is a second modification of roaring, from 

 which, it differs in that the noise produced is shriller, and 

 that it does not occur on sudden, but only after continuoua 

 motion. . It is supposed to be caused by some contraction 

 of the larynx. 



Animals subject to any of these diseases speedily be- 

 come exhausted by exertion, even while the disease is in 

 its original state, apart from the distressing sound which 

 they produce. All the forms are liable to degenerate into 

 the worst form of broken wind, and all constitute an un- 

 soundness for which a horse warranted sound is returnable. 

 The modes of detecting these diseases are various, but 

 simple and easy of execution. The first is by grasping 

 the horse's throat from the front, and forcibly compressing 

 the mouth of the larynx, so as to compel him to cough 

 A sound horse will cough once and recover his wind, with 

 a clear, sono/ous inhalation and exhalation. The diseased 

 horse will utter a broken, ragged, rattling cough, and re- 

 cover his breath with a long, wheezing and laborious utle. 

 This sign is infallible ; and the degree of labor and diffi ■ 

 culty will certainly indicate the degree of the affection. A 

 roarer may be detected even in the stable, by approaching 

 him suddenly and hitting him an unexpected slap on the 

 belly, when he will utter a loud grunt, not unfrequently 

 accompanied by a flatulent crepitus. When the affection 

 is confirmed roaring, it will manifest itself when he is pat 

 to his speed ; but if he is merely a whistler, the noise ia 

 often drowned, particularly when the disease is ouly in its 



