94 THE AKMY HORSE, 



the wall. The most common form of (jvuirter crack is a deep 

 fissure extending through the wall and causing a pinching of 

 the sensitive structures. When, however, the crack is not deep 

 there is seldom any lameness. 



Treatment. — The first step is to remove the shoe and soften 

 the horn by poultices or by standing in warm or cold water for 

 a few days, then cut away the hard overlapping edges of the 

 fissure and thin the wall on each side so that there will be no 

 friction between the edges of the crack. As the wall grows 

 down from the coronet the upper end of the crack must be 

 carefully observed to see that the new horn grows down strong 

 and smooth. In time the crack will disappear at the lower 

 edge of the wall. If the sensitive laminae have been exposed by 

 this operation, the parts should be washed with a solution of 

 creolin, 1 to 50, and the wound should be dusted with acet- 

 anilid and covered with a pad of oakum held in place by a boot 

 or bandage. In a few days a thin layer of horn will be thrown 

 out, covering the sensitive laminse. The horse can then gen- 

 erally be put to work. 



After a quarter crack has been trimmed out, the horse should 

 be shod with a bar shoe, the wall underneath the quarter crack 

 being cut away so that it will not come in contact with the shoe. 



In a case of toe crack the operation is the same. In shoeing, 

 the wall is cut away at the toe to prevent pressure. 



PUNCTURE OF THE SOLE AND FROG PRICKS IN SHOEING. 



A puncture of the sole or frog is usually caused by a horse 

 stepping on a nail, a piece of broken glass, or other sharp 

 object. If the wound enters the soft structures of the foot, it 

 results in lameness and the formation of pus. 



Pricks in shoeing are of two kinds: First, when the nail is 

 driven into the soft structures, and second, when it is driven 

 too close, causing a bulging of the inner layer of horn, which is 

 forced in upon the sensitive lamin*. In the first case the horse 

 goes lame immediately, in the second case lameness may not 

 appear for several days or weeks. 



To detect a punctured wound of the foot remove the shoe, 

 examining each nail as it is withdrawn for traces of moisture. 

 Then test with the pinchers. When the sore spot is pressed, the 

 horse will flinch. 



Treatment. — Open the wound and let out any pus that may 

 have formed; wash out with a solution of creolin, 1 to 25, or 



