662 



OPEBATIOKS ON THE FOOT, 



Fig. 511.— Defays' Contrary Vise. 



duciBg much result. These repeated dilatations once in four days 

 for a month, are assisted by the application of soft poultices in 

 horses which, on account of the pain and consequent lameness, 

 are kept in the stable. Others may be put to work, and receive 

 potiltices only when at rest, or may be turned into damp fields. 

 The shoe rarely needs changing during the treatment, which lasts 

 about a month. This mode of opening the heels is especially 

 practicable and of easy application, and has the advantage of 

 allowing the use of the horse, whose foot is as well protected as 

 with the ordinary shoe. It becomes indispensable when the dis- 



