INFLAMMATOEY AFFECTIONS 319 



moved, and the foot redressed. To effect this it is necessary 

 to recast the horse. Commencing at the edge of the sound 

 horn, at the most dependent part of the foot, all new horn, 

 no matter what its condition, must be pared to the quick, 

 especial care being taken to effectually remove any linger- 

 ing disease. Want of success is frequently attributable to 

 neglect of this precaution. A small particle of canker 

 remains undetected, forms a new centre of infection, and 

 just when success is anticipated, much to your chagrin you 

 have to deal with a fresh outbreak of canker, instead of a 

 rapidly-healing foot. Parenthetically, I may here remark 

 that the amount of more or less imperfect new horn pro- 

 duced by a cankered surface after an effective but not too 

 destructive cauterization is almost incredible, and one can- 

 not fail to be struck with the very active proliferation here 

 compared with the meagre production of new horn by the 

 healthy surface. 



* After all disease has been excised, carefully clean the 

 foot with waste, thoroughly protect any raw surface result- 

 ing from overcauterization by some mild agent, such as a 

 saturated calomel ointment, reapply an astringent dressing 

 over the whole affected surface, and nail on the shoe. This 

 method of procedure should now be thoroughly carried out 

 daily for a time, and as it is proceeded with a successful 

 issue soon becomes assured in nearly every case. Where, 

 in spite of these efforts, the disease still persists, depend 

 upon it the fault is with the operator, who has failed to 

 eradicate some centre of infection. Under these circum- 

 stances it may be necessary to recast the patient, repare 

 the foot, and by the aid of eye, knife, and cautery, en- 

 deavour to find the cause, and having found it, which can 

 invariably be done, remove it. The usual treatment will 

 then speedily become successful. As the case proceeds 

 dressing every other day will soon be sufficient, then twice 

 a week, and finally, once a week until sufficiently cured. 



' During this healing process, and after the complete 

 eradication of canker it may be again repeated, no agent 

 seems to have a more beneficial effect than calomel, and for 



