108 OF THE DISEASES 



it is impossible that there can be a sharp edge even 

 at the end of a month's wear. 



When the inner edge is thus sloped off, there will 

 be no over-reach properly so called, even though the 

 hind shoe should strike the fore heel. There may- 

 be a blow and bruise, but there will be no wound. 

 If, however, the horse should continue to strike the 

 fore heel, it will be advisable to put the hind shoe 

 a little back, and to leave the crust projecting 

 beyond it. 



The treatment of over-reach is simple enough. 

 The part decidedly loose should be cut off, and the 

 wound kept clean. If the injury is a severe one, it 

 may be necessary to apply a poultice for a day or 

 two. When the wound begins to heal, the cure 

 may be hastened by cold water dressings, and if the 

 reparative process is imperfect or tardy, by applying 

 tincture of myrrh, diluted solution of sulphate of 

 zinc or other such mild astringent. 



Treads. §4. Treads are injuries of the coronary band or 



coronet, generally inflicted by the other foot. They 

 are most common in the hind feet, especially where 

 horses are shod, as is often the case with heavy 

 draught horses, with calkins on the inside as well as 

 on the outside. The best remedy is to substitute a 

 raised heel well rounded off for the inside calkin. 

 If, however, it is considered absolutely necessary to 

 use a calkin on the inside, the liability to injury 



