DISEASES OF HORSES AND CATTLE. 259 



Causes: Injuries to the coronary band, destroy- 

 ing its secreting substance. 



Treatment: If the animal is lame poultice the 

 foot to reduce the inflammation; then put on a 

 bar shoe, so that it will rest on the frog and wall, 

 except the affected part; this will take off the 

 pressure, and the animal will not go lame. Re- 

 move all the ragged edges, and cut a little of the 

 band, then heal this as an ordinary wound, and 

 there is a possibility of the band growing up and 

 being capable of growing out a healthy hoof. I 

 have succeeded in some cases. Keep using the bar 

 shoe until the hoof grows down, and if it does not 

 do so it will still be necessary to keep on the bar 

 shoe to protect the weak part. 



Sand Crack. — A sand crack may be found in 

 any part of the wall of the foot. It differs from 

 false quarter in being caused by a dry, brittle con- 

 dition of the hoof. The parts where it is usually 

 found are in front and on the inside quarters, sel- 

 dom on the outside. 



Causes: When the hoof from some cause be- 

 comes brittle, dry and hard it loses what elasticity 

 it had and is liable to crack from over-exertion, 

 so that a sand-crack may appear suddenly. This 

 is the case when the sole of the foot i& weakened 

 by paring; the weight-bearing surface is limited 

 to the wall, the weight thus thrown on the wall 

 overstrains it, and it may split at once, or it in- 

 duces a deranged condition of the structures to 

 which it is attached, causing the dryness favorable 

 for it cracking. Sand-crack begins at the top of 



