CARBUNCLE OF CORONARY BAND. 373 



Amination of the foot are imperative. The general febrile 

 disturbances are to be combated by — 1st. A. brisk cathartic ; 

 2d. Sedatives or anodynes, as the case may reqiiire — anodynes 

 if the pain be acute, sedatives if the febrile symptoms pre- 

 dominate. The caustic is to be applied every second day, until 

 it is seen that the ulcerations are becoming healthy in appear- 

 ance. I have tried the carbolic acid dressings, but they are 

 not to be compared with the nitrate of silver, cold water, and 

 astringents. It must be remembered that the caustic is not 

 to be applied for the purpose of destroying healthy tissue, but 

 to induce healthy action in what is already diseased ; it must 

 therefore be used with cautious freedom. 



The appetite is to be stimulated by tempting food ; care must 

 be taken not to let the strength be reduced by the want of 

 proper nourishment ; and as soon as the most acute febrile 

 symptoms have passed off, tonics, especially the salts of iron, 

 ivre to be given. The stable must be well ventilated, clean, and 

 well drained ; in fact, the svirroundings of the animal are to be 

 of the best kind. 



The result of a modified form of this disease may be a false- 

 quarter. 



FALSE-QUARTER. 



This consists of one or more clefts or fissures in any part of the 

 crust or wall of the foot, due to the destruction of the secretory 

 coronary band. 



The horny wall or crust of the .foot being secreted by the 

 coronary substance, it naturally follows that when a part of it 

 is destroyed, the part of the v/all below the destroyed portion 

 is no longer supplied with horn from above ; and this deficiency 

 causes a chasm or fissure in the waU. It differs from " sand- 

 crack " very materially ; is much wider at its base, and contains 

 a modified condition of horn; that is, the horny lajninae — 

 secreted by the sensitive ones — denuded of their outer covering. 

 The coronary band also shows a loss of substance corresponding 

 to that in the crust. 



A horse having a " false-quarter," althongh he may not at the 



time show any signs of lameness, is to be considered unsound, 



since he is liable to become lame at any time, from injury to 



, the thin homy covering of this part of the foot, which is also 



