[ i03 ] 



Objection III. 



It is faid that I never open the heel, and that 

 that is the caufe of diforders. 



Answer. There arethree forts of diforders, the 

 firft comes from a ftrain ; to which I have anfwer- 

 ed, the fécond from not opening the heel well ; 

 but when ever I fee them difpofed that way, I 

 pare them, leaving the frog in its full ftrength ; 

 and the third fort proceeds from the natural ftruc- 

 ture of the foot ; and in this cafe whether the foot 

 be pared or not, they will equally come on. 



Objection IV. 



They fay that the frog ought to be fatigued, 

 becaufe the horfe goes upon it. 



Answer. I could rigoroufly appeal for this 

 to experience : no horfe fhod in this new me- 

 thod has to this day fhewed the leaft fign of 

 the fatigue of the frog, or of its fenfibility; 

 and I even do not believe that any one can fay 

 he ever faw horfes lamed, having old fhoes 

 on, for having travelled upon the frog ; and 

 it will be feen that it is fcarce poflible, when 

 we reflect upon the whole particular ftructure 

 of this part as I have given it in this work. It 

 is a foft, fpongy, flexible fubftance, which by 

 its natural elafticity yields to the weight of the 

 G 4 body 



