THE THliEE KINDS OF HORN. 37 



The reader will now see that these three kinds of 

 horn work with each other, and that if either of them 

 be removed the other two cannot perform their tasks 

 at all, and that if one be even injured, the others are 

 proportionately weakened. Each of these points will 

 presently be considered at length, but I have thought 

 it better to begin by giving the reader a general 

 idea of the natural hoof and its structure. At all 

 events, enough has been said to show that the hoof 

 is not made for one kind of ground or one climate 

 only, but is capable of sustaining the animal on rock, 

 marsh, loose stone, or ice. 



We will now take a corresponding view of the 

 internal structure of the hoof. 



