DISEASES OF THE EESPIEATORY ORGANS. 163 



Internally give: 



Chlorate of potash 4 drachms 



Tincture of iron 6 drachms 



Water 8 ounce 



Give one tablespoonful three times daily. This is a dose 

 for an adult sheep. For lambs give one-quarter of above. 

 Yearling sheep one teaspoonful. Give affected animals warm 

 quarters and good nursing. This disease in the sheep as a rule 

 yields to treatment, whereas in the horse it is a serious affection, 

 frequently proving fatal. Youatt, in his work, mentions two 

 cases of oedematous sore throat in sheep in which he per- 

 formed tracheotomy (an operation in which the windpipe is 

 opened and a tube inserted) with satisfactory results. This is 

 evidence that severe cases may occur which require heroic treat- 

 ment. It is a good policy where a valuable animal becomes at- 

 tacked with laryngitis to commence treatment early to avoid any 

 such difficulty. 



Bronchitis. 



Is inflammation of the mucous lining of the bronchial 

 tubes. In its nature it is catarrhal, and is frequently found 

 occurring as a sequela to nasal catarrh and laryngitis. Adult 

 sheep, according to Gamgee, suffer severely from this affection, 

 and lambs are very liable to it, due to too early exposure to the 

 elements or continued wet, stormy weather and overcrowding in 

 sheds. Having to breathe a vitiated atmosphere also is a fertile 

 cause of this disease. 



Symptotna. 



Are the same as those of nasal catarrh, but the cough is 

 moist in character, a wheezing sound being audible, consider- 

 able fever is present, the throat and belly are tender to the toucli, 

 the respirations are quick, increasing in rapidity as the disease 

 progresses, the appetite is lost from the start, the thirst, which at 



