206 Diseases of the Hor^se, 



crack* A small hole is bored with a red hot wire, to admit 

 the iusertion of thin hooks on each side of the crack, the 

 sides of which are thus firmly bound together. 



Another and a simple expedient is to cut several notches 

 on one side of the crack, and drive a small horseshoe nail in 

 the wall, passing across the crack, and coming out through the 

 wall on its other side, where it can be firmly clinched. This 

 also brings the edges of the crack so closely together that no 

 dirt can enter, and if neatly performed, without injury to the 

 sensitive structures beneath, will give immediate relief, and 

 ofPer a very fair prosj)ect of a permanent cure. 



Instead of these mechanical appliances, some cases ^dll re- 

 cover by filling the crack, after cleansing it thoroughly, with 

 the following composition, and turning the horse out to grass 

 until a new hoof is grown. 



Definition, — A large crack or gap in the coronet or wall of 

 the foot, showing a deficiency of the horn-making secretion 

 of the part, or that the secretion is unhealthy. 



Causes. — The usual cause is some previous disease of the 

 coronary band, such as carbuncle, quittor, injury, severe frost- 

 bite, or the like, which has altered its structure to such a de- 

 gree that it can no longer perform its proper function of 

 secreting the material for the horny layers. 



Symptoms. — Although a horse with false quarter is not 

 always lame, he is very apt to become so, and is esteemed 

 unsound by all authorities. False quarter differs from sand- 

 crack, both in origin and appearance ; it is much wider at the 



