THE HORSE IN SICKNESS AND DISEASE 415 



must be recollected that the living and dead horn will 

 never unite, and every portion of the horny sole that has 

 separated from the fleshy sole above must be removed. 

 Much of the success of the treatment depends on this. No 

 small strip or edge of separated horn must be suffered to 

 press upon any part of the wound. The exposed fleshy 

 sole must then be touched, but not too severely, with 

 chloride (butyr) of antimony, some soft and dry tow placed 

 over the part, the foot stopped, and a poultice placed over 

 all if the inflammation seems to require it. 



On the following day a thin pellicle of horn will fre- 

 quently be found over a part, or the whole of the wound. 

 This should be, yet very lightly, touched again with the 

 caustic ; but if there be an appearance of fungus sprouting 

 from the exposed surface, the application of the butyr must 

 be more severe, and the tow again placed over it so as to 

 afford considerable, yet uniform pressure. Many days do 

 not often elapse before the new horn covers the whole of 

 the wound. In these extensive openings the Friar's balsam 

 will not often be successful, but the cure must be effected 

 by the judicious and never too severe use of the caustic. 

 Bleeding at the toe, and physic, will be resorted to as 

 useful auxiliaries when much inflammation arises. 



In searching the foot to ascertain the existence of prick, 

 there is often something very censurable in the carelessness 

 with which the horn is cut away between the bottom of the 

 crust and the sole, so as to leave little or no hold for the 

 nails, while some months must elapse before the horn will 

 grow down sufficiently far for the shoe to be securely 

 fastened. 



Youatt adds : " When a free opening has been made 

 below, and matter has not broken out at the coronet, it will 

 rarely be necessary to remove any portion of the horn at 

 the quarters, although we may be able to ascertain by the 

 use of the probe that the separation of the crust extends 

 for a considerable space above the sole." 



CORNS. 



A corn in the human subject is a very different thing 

 from that of the horse, although both arise from pressure. 

 In the horse they are ordinarily seated in that part of the 

 horny sole which is situated between the inner quarter and 



