128 TflE CANADIAN HORSE 



When the bowels are constipated, as is often the case, clysters 

 of soap and water must be freely used, and the general comfort 

 of the animal well attended to. When the cough is severe and 

 hacking, the following ball may be given once or twice a-day. 

 Cough Ball. 



' Camphor, 1 drachm. 



\ Powdered opium, . . . 1 drachm, 



j Extract of belladonna, . . 2 scruples. 



If the animal is threatened with stiffocation, the windpipje 

 must be opened and a tubfi_ inserted. (See Operations, 

 page 196.) We have also found benefit from sponging out 

 the larynx with a solution of the nitrate of silver. 



CHRONIC COUGH 



^is often a sequel of sore throat (laryngitis), as aljo of dis- 

 temper (strangles), and is a disease, when once fairly esta- 

 blished ; complete recovery seldom takes place. It consists 

 in a chronic inflamfhation of the many glands imbedded 

 within the lining membrane of the larynx, causing an 

 irritation of that highly sensitive organ. The cough is easily 

 excited by pressure externally, and is of a deep hoUow 

 nature, differing materially from the loud sonorous sound of 

 the healthy cough. 



It is often associated with other diseases of the chest, as 

 broken wind, thick wind, &c., and we believe it sometimes 

 accompanies chronic indigestion, and other diseases of the 

 stomach and bowels, caused appareiitly by some lesion of 

 the pneumogastric nerve or some of its branches. The cough 

 is generally most severe in the mornings or after meals, and 

 is always aggravated by gross feeding. In many cases 

 chronic cough interferes but little with a horse's usefulness, . 

 especially if he is used for ordinary farm work, but it must 

 be considered an unsoundness. 



