THE HORSE, ITS DISEASES. 257 



when lameness ceases from the suspension of action of the joints caused 

 by their complete solidification or growing together. 



That the reader may form a more correct idea of what we here write, 

 and have it brought plainly to view, we present an illustration of some of 

 the principal diseases of the bones and tissues, caused generally by abuse, 

 with a sfiort description of their origin. The treatment will be given in 

 the proper place, 



A — Caries of the Jaw. Ulceration of the lower jaw, sometimes ends 

 in mortification. Caused by bruises from barbarous bits and curb chains. 



B — Fistula of the Parotid Duct. Fistulas are caused by bruises or 

 undue compression of the parts producing inflammation and abscess. 



C — Bony Excrescence. (Exostosis of the jaw). A blow upon a bone 

 will produce inflammation followed by exostosis (bony growth through 

 increased nutrition) — that of the joints being fearfully painful. 



D — Swelling by pressure of the bridle, causing inflammation, and 

 sometimes tumors. 



E — Poll Evil. A painful fistulous disease, often diflScult to cure. 



F — Inflamed Parotid Gland. Caused by a bruise or compression. 



G — Inflamed Jugular Vein, caused in various ways, often by careless- 

 ness after bleeding. 



H — Fungus Tumor, from compression of the collar. The result of 

 galls and subsequent want of care, and inattention. 



/ — Fistida of the Withers, caused gene»ally by pressure of the saddle. 



J — Saddle Gall, caused by a bad fitting saddle ; sometimes ending in 

 sitiasts. 



K — Twmoro/^Ae^^So?!;, caused generally by interference of the shoe 

 in lying down ; sometimes by a blow. Called also, Capped Elbow. 



L — Induration of the Knee, caused by blows in falling. 



M — Clap of the Back Sinews, caused by severe exertion in running 

 and leaping, destroying the integrity of the sinews of the leg. 



iV — Mallenders, scurfy manifestations at flexions of the knee, sometimos 

 becoming cracked and itchy. 



— Splint, caused by blows, kicks, etc., on the shins. They are to 

 be dreaded as interfering with the action of the sinews. 



P — Ringbone, caused by starting heavy loads, or excessive pulling in 

 going up hill. 



Q — Tread upon the Coronet, the contusion of the shoe of one foot by 

 treading on the other, causing laceration of the coronet and of the horn 

 of the hoof. 



i? — Quitter, confined pus, from prick of the sole, corns, or injury to 

 coronet. 



