INFLAMMATORY 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 inatter 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 
