59 



shell, for instance — would undergo a 

 change of nutrition so marked and ob- 

 servable without corresponding change in 

 other parts of the hoof The sole would 

 necessarily be effected in the same man- 

 ner and degree. 



I had an accidental illustration of this 

 in my own horse, while driving one day in 

 February, when the weather was cold, and 

 with a few inches of snow on the ground, 

 I noticed that he suddenly limped for a 

 few paces. As this had not occurred be- 

 fore, it attracted my attention. It passed 

 off immediately, however, and I thought 

 no more of it, as he traveled over the 

 frozen streets without showing any dis- 

 comfort, and trotted into the carriage- 

 house, with its hard plank floor, without 



