578 THE PRACTICE OF VETERINARY MEDICINE. 



Belladonna ext., et camphors, or the cough-ball recom- 

 mended by Prof. Dick, may be given, and in exceptional 

 cases a seton may be inserted near the region of the larynx, 

 and is said to be highly beneficial. In cases where the 

 occurrence of roaring is feared as a result of influenza, 

 l)otass?e chlorat, and potassium iodidi are to be freely 

 given in the usual quantities. The first, by preventing 

 degeneration of tissue, eff'ectually combats in most cases 

 the tendency to atrophy of the muscles involved in roaring, 

 and the latter tends to remove any abnormal thickening of 

 the mucous membrane lining the larynx. 



The results of influenza, some of which have been 

 mentioned, are : Rheumatism, aff'ections of fibrous struc- 

 tures of various parts of the body, more particularly of the 

 pericardium and endocardium, hydrothorax, ulceration t.f 

 the larynx, roaring, chronic cough, purpura hsemorrhagica, 

 and it is said sometimes glanders and farcy, each of which 

 present their usual characteristic symptoms, and require 

 the ordinar}^ treatment accorded to them as they usually 

 occur. 



Influenza also occurs in cattle, though perhaps not so 

 commonly as in the horse, and, as a rule, is not so produc- 

 tive of serious results as it is in the hors^, as cattle, being of 

 a much rougher and stronger nature, possessing diff'erent 

 temperaments and stronger constitutions, are better calcu- 

 lated to withstand the inroads of the disease than are the 

 more delicate, and finely constituted, members of the equine 

 race. 



It is most prevalent during the spring and autumn 

 months. 



Causes predisposing and exciting, are about the same as 

 in the horse. 



Symptoms are : Dulness, rigors, languor, partial or com- 

 plete loss of appetite, extreme dejection, drooping of the 



