DISEASES AND TREATMENT OF THE HORSE. 151 



Treatment. — Place a twitch on the animal's nose and with a 

 sharp knife split the skin and tissues open to the diseased part of 

 the cartilage, scrape the diseased part out and burn around where 

 the diseased cartilage is with caustic potash, which will generally 

 set up a healthy action, and it will heal up all right. 



FROST BITES OF THE EAR.* 



This is generally caused by keeping the animal in a cold place 

 and allowing the ear to become frozen. This is not so common in 

 horses as it is in young cattle. 



Treatment. — Bathe with cold water, and apply the white lotion 

 after bathing, three or four times a day. If it is taken in time it 

 will save the ear from dropping off. If the ear becomes dead, and 

 drops off, treat the same until it heals up. If you notice the ear 

 just at the time it is frozen, apply snow to it to draw out the frost. 



CHAPTER XIV. 



DISEASES OF THE EYE. 



Before studying the diseases of the eye it is advisable to study 

 the anatomy of the eye, found in Part I. of this book. 



SIMPLE OPHTHALMIA. 



This is inflammation of the outside covering of the eyes and 

 the lining of the lids. 



Causes. — This is often the result of an injury of some kind, 

 such as being struck with a whip in the eye; or extreme heat or 

 cold will cause it ; being kept in a dark stable, or where there is 

 foul air around the stable, or from chaflf or any other substance 

 getting into the eye. 



Symptoms. — The eye is very dull and partly closed, and some- 

 times the eyelids will be swollen, and water running from the 

 corner of the eye. The eye is sore to handle and it hurts when 

 the animal is brought into the light, and on account of this he will 

 keep it closed. After a day or so there will be a scum gradually 

 come over the eye and it presents a very irritated appearance. 



Treatment. — Examine the eye carefully and try and find out 

 the cause of the trouble. If it is a piece of chaff, or anv substance 

 in the eye, remove it ; if it is the fault of the stable, get it fixed. 

 Bathe the eye well with new milk, just from the cow, twice a day 

 and, after bathing it, each time apply the eye wash, mentioned in 



