238 DISEASES OF HORSES AND CATTLE. 



tioned. It is covered by a layer of villi which se- 

 cretes the horny frog. 



The Coronary Substance, or Band. — This is the 

 vascular structure situated on the upper border of 

 the wall. It consists of a dense fibrous band, 

 which is connected with the coffin bone and the 

 extensor tendon by dense fibrous tissue, on which 

 reposes a plexus of blood vessels,covered by a mod- 



PLATE 7. SHOWING THE FOOT PREPARED 

 FOR THE SHOE. 



ified form of the skin, containing a number of little 

 projections, which enter into funnel-shaped open- 

 ings in the crust. The horn is secreted from this 

 part. 



Shoeing the Horse. — As horses' feet were made 

 before roads, it was necessary to contrive some- 

 thing which could be put on the feet to protect 

 them from breaking up or wearing down too fast. 

 There, has been a great deal written on this sub- 



