140 THE HORSB. 



oped the fever usually disappears and the animal regains its appetite, 

 unless the swelling is sufficient to interfere with the function of the 

 throat, causing pain on any attempt to swallow. At the end of four or 

 six days the discharge lessens, the soreness around the throat dimin- 

 ishes, the horse regains its appetite, and in two weeks has regained its 

 usual condition. 



Old and strong horses may have the disease in so light a form that the 

 fever is not noticeable; they may continue to eat and perform their or- 

 dinary work as usual and no symptom may be seen beyond a slight dis- 

 charge from the nose and a rare cough, which is not sufficient to worry 

 any but the most particular owner. But, on the other hand, the disease 

 may assume a malignant form or become complicated so as to become a 

 most serious disease, and even prove fatal in many cases. Inflammation 

 of the larynx and bronchi, if excessive, will produce violent, harsh 

 coughing, which may almost asphyxiate the animal. The large amount 

 of discharge may be mixed with air by the difficult breathing, and the 

 nostrils, the front of the animal, manger and surrounding objects be- 

 come covered with a white foam. The inflammation may be in the lung 

 itself (lobular pneumonia) and cause the animal to breathe heavily, 

 heave at the flanks, and show great di.stress. In this condition 

 marked symptoms of fever are seen; the appetite is lost, the coat is dry, 

 the horse stands back in his stall at the end of the halter strap with his 

 neck extended and his legs propped apart to favor its breathing. 

 This condition may end by resolution, leaving the horse for some time 

 with a severe cough, or the animal may die from choking up of the 

 lunge (asphyxia). 



The swelling under the jaw may be excessive, and if the abscess is 

 not opened it burrows toward the throat or to the side and causes 

 inflammation of the parotid glands and breaks in annoying fistu- 

 las at the sides of the throat and even up as high as the ears. 

 Roaring may occur either during a moderately severe attack from 

 inflammation of the throat (larynx), or at a later period as the re- 

 sult of continued lung trouble. Abscesses may develop in other parts 

 of the body, in the poll, in the withers, or in the .spaces of loose tissue 

 under the arms, in the fold of the thigh, and, in entire horses, in the 

 testacies. 



During the course of the disease or later, when the animal 

 seems to be on the road to perfect recovery, abscesses may form in the 



