464 The Farmer'' s Veterinary A iviser. 



quick from uneven bearing of tlie shoe ia connection with 

 misfitting shoes or breaking of the hoof-wall; injuries 

 fi-om nails driven into the quick or picked up on the road ; 

 a rheumatic constitution; impaired nutrition with in- 

 creased elimination of phosphates from the system ; or an 

 extension of disease from the digestive organs as in an 

 over-feed of grain, or a drink of cold water when hot and 

 fatigued, etc. 



Symptoms. Pointing the affected foot eight or ten 

 inches in advance of the other, with the heel sHghtly 

 raised when standing quietly in the stable. This symptom 



Fig. 71. 



Fig. 71 — Ulceration of the small sesamoid bone ot the foot, and distorted 

 heels of the coffin-bone. 



may last for months before lameness is shown. Stepping 

 short and on the toe with a great tendency to stumble 

 when first moved from the stable, which lameness may 

 entirely disappear after going a mile or two. It is worse 

 when cooled off after a long drive, but it may appear in- 

 termittently while at work, as occasional stumbling or 

 dropping on the sound foot for some time at first. The 

 toe of the shoe is more worn than other parts owing to the 

 pecuhar gait. The foot feels hot, especially in its poste- 

 rior part, and in acute cases the soft parts may bulge over 

 the coronet and the pastern arteries throb with unusual 

 force. The foot too. soon diminishes in size, especially in 



