SHOEING. 173 



ditional instructions to fix a criterion, which 

 must, after all the speculative matter or ex- 

 peri luental knowledge that can be introduced, 

 be regulated by the exercise of his own pro- 

 fessional penetration, or the personal super- 

 intendance of those whose instructions it 

 must be his interest to obey. 



Corns in sieneral occasioned much more 

 by the unobserved stricture of the sJws (as 

 before described) than any defect in nature, 

 are not sufficiently attended to in their ear- 

 liest state for speedy obliteration ; but per- 

 mitted to acquire, by time and continuance 

 of ^he cause, a rigid callosity before the least 

 attempt is made for extirpation ; during 

 which inattention they become so inflexiblv 

 firm in their basis, that they are not easily to 

 be eradicated, though great care and perse- 

 verance will greatly assist their mitigation, if 

 not entirely establish their cure. 



The best and most consistent method is to 

 reduce it with the drawing knife as much as 

 the extent of the corn and the depth of the 

 sole will admit, observing not to exceed the 

 bounds of discretion in penetrating the horny 



