LAMENESS AND DISEASES, ETC. 163 



mence thinning the shoe at the center of the quarters, and carry- 

 ing it oti" both toward the heels and toe, having the shoe light 

 and the bar good and wide, to obtain strong frog pressure. 

 AVhen the cracks occur opposite the wings of the coffin-bone, 

 level the foot and shorten the toe as much as can be conveniently 

 done. If the crack occurs on one side only, use the shoe shown 

 by Figs. 58 and 59, allowing for strong frog pressure. If cracks 

 happen on both sides, shoe with a three-quarter tip. File or rasp 

 the wall on both sides of the crack, from coronet to the ground 

 surface, as thin as safety will permit. If toe and heel calkins 

 are required, apply a four-calkin shoe, well rolled on the ground 

 surface. If the foot be sore and tender, my foot salve may be 

 used with advantage, by warming and saturating with it a 

 pledget of cotton, and applying it to the affected parts, securing 

 same with a bandage. A new growth of horn may also be 

 stimulated by keeping the hoof moist with cold-water bandages 

 around the coronet. Remove the shoes everv three weeks, in 

 order to prevent an excessive growth of horn. By following 

 these instructions, this form of disease may be easily cured and 

 the horse regularly worked. 



Corns. — There are several forms in which these trouble- 

 some growths manifest themselves, though their cause and loca- 

 tion are generally the same. 



The seat of corns is always in the sole of the foot, or its 

 lower connection with the wall and generally in the posterior 

 portion of the hoof, at or in the angle made by the wall in its 

 return to form the bars. 



Fig. 60, on the following page, shows, however, that corns 

 do not always come in the heels. The letters. A, A, show three 

 hard, callous corns bulging up in the inner sole, at point of frog, 

 producing tenderness and lameness around the toe. 



The primary cause of all corns in the horse's foot is an un- 

 even ground surface, resulting either from the improper level- 



