DISEASES OF THE FEET. 



237 



disease are strongly marked, and consist of an abundant, fetid, 

 colorless discharge from the frog, which is large, spongy, and 

 covered with vascular prominences of a fungoid nature. The 

 growth extends, involving the whole frog and sole, and if not 

 checked will ultimately produce deformity of the whole hoof. 



Treatment. — The treatment is tedious. The diseased surface 

 should be removed, as well as the whole sole, by the knife. To 

 remove the sole, cut down at the junction of the wall and sole, 

 and follow it all around. Then cut it in halves. Throw the ani- 

 mal, and rei^nove every trace of the horny covering of both sole 

 and frog. Dress the whole of the surface with a strong solution 

 of nitrate of silver. Pack up with tow or cotton, and place a 

 boot on the foot. Do not remove the dressing for two days. In 

 removing the dressing it should first be soaked with water in 

 order to break its adhesion from the tender surface. Xitric acid 

 may be used to destroy the growth that sometimes spring* up 

 after the removal of the horn. Usually, after the removal of the 

 horn, the foot presents a healthy appearance, and requires but 

 little more than cleanliness. Professor Williams recommends 

 the use of cromic acid in the treatment of canker. Sulphuric 

 acid may be used in its undiluted state. When a thin pellicle of 

 horn has formed, gentle pressure, by means of tow dipped in tar, 

 should be used. The animal should be given a dose of aloes, 

 followed with a half ounce of nitrate of potash and an ounce of 

 sweet spirits of nitre. This requires, under favorable circum- 

 stances, a period of two moutlis. 



QUITTOR, 



A fistulous opening at the upper portion of the hoof, extending 

 down between the sensitive and the insensitive lamina. It is 

 generally caused by treads, pricks in shoeing, suppurating corns, 

 or any other injury calculated to excite the suppurative action 

 within the foot. 



Symptoms. — Lameness, a hard swelling in the region of the 

 coronet, the softening and discharge of pus. A sinus is formed, 



