AND HOW TO KEEP IT SOUND. 



49 



FIGURES III., IV., v.. AND VI. 



Figs. 3, 4, 5, and 6, represent the detached bones of the 

 foot, and also a section of the foot, exhibiting at one view 

 the relative position of all its parts in the way of a map : 

 the f('rmer I drew from the bones of the foot represented in 

 Figs. 1 and 2, — and the latter from the foot of a young 

 thorough-bred horse, rising four years old, in which shoeing 

 and stabling had not had time to produce any material 



nhanges. 



Fig. 3. 



a. 

 b. 



g. 3. — The coronet bone. 



The under surface, which forms part of the coffin joint. 

 The upper surface, which forms part of the pastern joint. 

 c. Roughened surfaces for the insertion of muscles. 



Fig. 4. 



fig. 4. — The coffin bone. 



a. The toe ; — showing its elevation from the ground line of th» 

 sides of the bone, as also its notched appearance. 



h b. The wings. 



c c. Holes for the passage of the arteries, which supply the sensi- 

 ble covering of the bone and the bone itself with blood. 



d d. Surfaces, which form part of the coffin joint. 



e. The body of the bone much roughened for the attachment of 

 the sensible laminae, and thickly studded with holes for thd 

 passage of blood-vessels. 



5 



