CHAP. I.] HORN, HOW COMPOUNDED. 451 



and colour as that which fills the space between the 

 hoof Bind coffin-bone (at cc) } in the section depicted 

 at page 448 : without odour and nearly tasteless, 

 its uses are evidently the supply of new horn, and 

 reparation of waste. 



Seeing this curious construction of the foot, we 

 are compelled to allow that numerous accidents 

 may also occur to prevent the supply of blood to 

 the parts, to say nothing of its unfitness at times 

 to carry on its proper purposes. The two vessels 

 before noticed, that bring this supply of new blood 

 descend into the foot behind the small pastern 

 bone, and pass with the back sinew (k) underneath 

 the shuttle bone (h), as may be noticed in the cut. 

 Here it enters the coffin-bone at the sole, by an in- 

 dentation of the bone designed for the protection 

 of the vessels passing in and out. From the re- 

 ceptacle in the coffin bone, after concoction, the 

 blood issues forth — part of it to lubricate and 

 nourish the shuttle-bone and its adjacent ligaments, 

 the remainder to effect similar purposes elsewhere ; 

 but the greater part is attracted, by heat and action 

 of the foot, to supply the horny material of the 

 hoof in the manner we propose to show presently, 

 as well as how it is brought about. Along the whole 

 length of the shuttle-bone, on that side which is 

 next to the coffin-bone, is a groove serving as a 

 protection to certain small blood-vessels that ter- 

 minate there, and as a central receptacle for the 

 blood that is destined for dispersion. When dried, 

 it is equally inodorous and clammy, with less colour 



