70 



Treatment, — vSeveral applications have been tried with 

 good results. The following is about the best : 



External j Croton oil - 15 to 20 drops, 

 use ( Glycerine - i ounce. 



Let this be rubbed immediately on the throat around the 

 larynx every ten days. Another plan has been tried with 

 good results — the application of a red-hot iron, sometimes 

 the head of a hammer, held there for a few seconds until 

 the part is blistered ; it may be repeated twice in a month. 

 The former is the safer method in unprofessional hands. In 

 these cases cough mixtures do very little good ; they only 

 relieve, but don't cure. 



ROARING. 



Cause. — Atrophy of the muscles of the larynx, in conse- 

 quence of which the cartileges fall inward at every inspira- 

 tion. The calibre of the passage being thus diminished and 

 obstructed, the air in passing along produces a peculiar 

 roaring, grating sound, and in some horses a sort of flap. 

 Roaring, highblowing and whistling results from these causes 

 — they supervene from strangles, tumors, and. tight reining, 

 which last was a very common aristocratic fashion in Europe 

 a few years ago. The bearing-rein accomplished this 

 purpose. 



Some rare instances of confirmed roaring have resulted 

 from continued terror and fright. 



Each of these defects constitute unsoundness, because they 

 interfere with a horse's present usefulness. 



No treatment recommended. 



THICK WIND. 



Consists in a thickened, corrugated condition of the 

 mucous membrane of the ultimate and remoter bronchii, 

 and usually results from repeated or serious attacks of 

 bronchitis. 



The breathing is accelerated, the number of respirations 

 and inspirations are equally increased, and are accompanied 



