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the other ; he will at the end of that time, per- 

 ceive a sensible difference between them. Where 

 the crust of the hoof is naturally dry and brittle, 

 it should be dressed externally with tar, especially 

 in hot weather. I have for many years, at the 

 suggestion of Mr. Sewell, adopted the plan of 

 shoeing my horses with leather. I am not pre- 

 pared to say that in all cases it will answer, though 

 I have never found an instance in which it has 

 proved inj urious. It not only supersedes the ne- 

 cessity of stopping, but it protects the feet from 

 bruises, and picking up stones ; it also has another 

 advantage, which I conceive to be very great. It 

 enables the frog to sustain the pressure on the 

 foot without the least risk of injury, and spares 

 the leg the violence of the jar, always occasioned 

 by rapid action. If a man stamps on the pave- 

 ment with an iron-heeled boot, a considerable jar 

 will be felt, producing an unpleasant sensation 

 in the whole limb ; and this too, notwithstanding 

 the thick layers of leather of which the heels of 

 our boots are composed : if, however, he places a 

 piece of leather on the pavement, he may stamp 

 with all his power, and no such sensation will be 

 perceived. To a certain extent the same relief is 

 2:iven, by interposing a thick plate of leather be- 

 tween the hoof and the shoe of the horse. How 



