ON SHOEING. 65 



Here likewise the heels ought to be pared down 

 very frequently. 



If the disease has existed so long as to have 

 insinuated itself between the horny and fleshy 

 soles of the foot, it is then termed a canker, and 

 must be treated in the following manner: First, 

 it will be necessary, with a drawing knife, to re- 

 move all that part of the horny sole which tlie 

 discharge has detached from the fleshy sole, or, 

 in other words, all that part which is hollow 

 underneath. The diseased surface being thus 

 exposed, is to be dressed with a caustic, such as 

 butter of antimony, or nitrous acid and water, 

 equal parts, and some dry tow or powdered 

 lime to absorb the discharge. When this plan 

 has been pursued, the cure will aferwards de- 

 pend upon the application of pressure to the 

 part affected. The sole being, in fact, a plexus 

 of blood vessels, granulations arise much more 

 rapidly there than in any other situation, hence 

 they are better checked in their exuberance by 

 F pressure 



