■8 THE ART OF HORSE-SHOEING. 



A section of wall enables us to see variations in its 

 thickness. (Fig. 4.) It is thickest at the toe, becoming 



Fig. 3.— Half of a Hoof, showing tho inside. 



gradually thinner towards the heels; thus affording 

 strength and solidity to resist wear at one part, as well 

 as pliancy at another to ward off concussion. 



Fio. 4.— Transverse Section of Wall, showing variation in thickness. 



