LAMENESSES 



CANKER 



Is a constitutional disease of the feet, and is due to a 

 habit of body or grossness of constitution, as exhibited 

 by thick, round legs, large feet, and the lymphatic tem- 

 perament. It usually begins in the frog, but it may be- 

 gin in any other part of the plantar surface. It much 

 resembles grease of the leg, and often coexists with it. 

 There is an abundant, fetid, colorless discharge from the 

 frog, which is large, spongy, and covered by pallid, stringy 



Fi>. 12. "Worst stage of Canker. Fig. 13. Improvement in Canker. 



prominences of a fungoid nature, intermixed with an of- 

 fensive smelling, semi-dried, cheesy matter, composed of 

 imperfect horn cells. The sound feet of a horse predis- 

 posed to canker very often have an abominable smell, as 

 if the animal suffered from a " sulphurated hydrogen 

 diathesis." (Williams.) 



Remedy. — Remove all superfluous horn and fungous 

 growths. Dress with silver nitrate, chromic acid, zinc 



