82 DISEASES OF THE HOBSE. 



Causes. Some constitutional disturbance, over driving^ 

 or hard work. 



Treatment. Inject, or apply cold water several times in 

 the day. 



(3.) Iritis. — Inflammation of the iris. 



Causes. Cold and exposure, producing rheumatism in 

 that portion of the eye. 



Symptoms. Redness of the eye, and muddy color of the 

 cornea. The iris is a little changed in color. 



Treatment. The application of moist poultices to the eye 

 for a few days to allay inflammation, or irritation. Then 

 apply three times daily, with a small brush called a camel's 

 hair pencil, the following mixture : Nitrate of silver, 

 twelve grains ; rain water, four ounces. The brush to be 

 dipped in the mixture, and drawn lightly across within the 

 eye. Keep the horse from the light as much as possible. 



(4.) Inflammation of the Sclerotic Coat. 



Symptoms. The coat is of a pink-red color. 



Cause. Rheumatism. 



Treatment. A teaspoonful of the wine of colchicum root, 

 four times in the day ; comfortable stabling and generous 

 feeding. 



Half-drachm doses of the iodide of potassium may be 

 tried in this case. Half-ounce doses of sesquicarbonate of 

 soda, occasionally, will be of service. 



(5.) Polypi. Small excrescences are sometimes seen to 

 arise from the iris, but require no treatment, as they will 

 pass away of themselves. 

 - (6.) Spots and Ulceration op the Cornea. 



Symptoms. Blood-vessels tinged with blood ; small, ele- 

 vated spots, which are sometimes ulcers, and at other times 

 small abscesses, owing to the abscesses being whole or 

 broken. 



