128 PRACTICE OF EQUINE MEDICINE. 



Turpentine, given in small doses, say fifteen to thirty minims 

 in alcohol. The tincture ferri muriatis checks the secretion and 

 tones up the heart and muscles of bronchial tubes. 



Zinc is indicated to stop excessive secretion from the bronchial 

 mucous membrane; it seems to enter into chemical combination 

 with pus. It diminishes the cough. 



Stimulating expectorants are generally contra-indicated. 



If the heart is feeble, digitalis and strychnine, balsam of Peru, 

 or tolu. Inhalations of eucalyptus, tar, sulphur, juniper berry, etc. 



Carbolic-acid gargles are often good, especially if there is any 

 odor to the discharge. 



Counter irritation, as blister to the chest, may be useful in 

 some cases. 



BRONCHIECTASIS. 



Give the definition. 



This is a cylindrical or saccular dilatation of the bronchial 

 tubes. 



Name the causes. 



This may be the result of chronic bronchitis or from inflam- 

 mations of various sorts; aneurisms, pressure, pleuritic adhesions 

 are among the causes. 



What are the most important symptoms ? 



There is a paroxysmal cough, especially on a change of posi- 

 tion, as the animal standing up after being in a recumbent position 

 for a time. 



There are no characteristic symptoms, and the -condition is 

 hard to diagnose. 



It is seen more in the bovine species, and is often mistaken 

 for tuberculosis, as earthy deposits may take place in the bronchial 

 tubes, which show dulness on percussion, and thus the liability to 

 the mistake. 



Is there any treatment ? 



This is probably only interesting to us on post mortem, as not 

 very much can be done for these cases. 



Treat symptomatically as the case requires. 



