— 30o — 



Epsom Salts. — (See Medicines.) 



Eruptions. — Eruptions are more a symptom tlian a disease. 

 (See Strangles, Surfeit, Stings of Insects, and Scarlatina.) 



Erysipelas. — This, as an independent disease, is not often, if 

 at all, seen in horses. It is often present after accidents, as a 

 bruise or a broken bone. 



Symptoms. A hard, tense and painful swelling of the parts, 

 accompanied with irritation and excitement through the entire 

 S3^stem. 



Treatment. Give twenty to twenty- five drops of the tincture of 

 aconite root four times in the day, to calm the system. Apply 

 cold iced water, with woollen cloths, to the part. If from broken 

 bones, try and remove, or adjust them in position to one another, 

 and secure them so with splint and bandage. In severe cases of 

 broken bones tlie animal had better be killed. (See Fractures.) 



Exostosis. — (See Splint and Bony Tumors.) 



Eyes, Diseases of the. — Before referring to the diseases of 

 this organ, it may be necessary to say a few words as to the struc- 

 ture of the eye. 



(1.) The e\'elids are composed of skin, and under it the fibres of 

 a circular muscle which close the eyelids. The eyelids are lined 

 internalh' with a mucous membrane called the conjunctiva, which 

 is reflected from them over the anterior surface of the eyeball. 



(2.) The globe of the eye is not exactly round, for it is more 

 like a segment of a smaller circle put into a greater one. 



(3.) The clear portion of the eye is called the cornea, and forms 

 a portion of the globe. 



(4.) The sclerotic coat is what is called the white of the eye; 

 and just back of it is what is called the choroid coat of the eye. 

 And immediately within this choroid coat is placed the retina, or 

 the expansion of the optic nerve, or the nerve of sight. 



(5.) The humors of the eye occupy the anterior chamber, as 

 well as pass into the posterior. The iris floats in this humor, and 

 behind it will be found the magnifying lens of the eye. This is a 

 double convex, and is placed in the centre of vision, and fronting 

 the next, or vitreous humor of the eye. This humor is enclosed 

 in a capsule, called the hyaloid membrane. The eyes of the horse 

 are so placed in his head, that he, at the same time sees different 

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