DISEASES OF THE FEET. 235 



When, however, the fissure occurs on the side of the foot, this treat- 

 ment is inapplicjiblc, as the crust in that part is too thin to admit with 

 safety the insertion of a nail. 



A very simple and easily applied clasp for the treatment is here 

 shown in Fig. 124. It may bo obtained, together with the necessary ap- 

 pliances for inserting and clinching it, from almost any surgical instru- 

 ment maker. The punch. Fig. 123, is heated to redness and applied so 

 as to burn a hole on each side of the crack. The clasp. Fig. 124, is then 

 taken in the pincers, Fig. 125, inserted in the holes, and squeezed to- 

 gether until the crack is closed. 



The treatment of sandcrack, as regards shoeing, consists in removing 

 the shoes altogether. When the fissure is at the side, a three-quarter 

 bar shoo may often be beneficially applied. Tips are an almost certain 

 remedy for sandcrack. Sandcracks can always be got rid of, as long as 

 the coronary band remains entire; but if by neglect the disease is allowed 

 to involve the secreting substance, false quarter, or a i)ermanent separa- 

 tion in the crust at the quarter, may probably be the result. 



Sandcracks being more or less constitutional, are apt to recur. 



FALSE QUARTER. 



Definition. — When any part of tlic coronary band is involved in 

 serious inflammation, its ordinary secretions are necessarily arrested. If 

 the inflammation is long continued, the vitality of the portion of the 

 band affected becomes wholly destroyed. As the crust is secreted from 

 the coronary band, it necessarily follows that there must be a break, or 

 separation in the crust immediately below the place where the injury to 

 the secreting surface has occurred. This separation is called false quar- 

 ter. Fig. 126. 



Etiology. — The disease in the coronary band is usually the result of 

 a tread, or of quittor, or sandcrack, or of any external injury suflicicnt to 

 produce violent inflammation in the secreting substance, and consequent 

 arrest or its secretien. 



Treatment. — As the secreting surface, when once destroyed, cannot 

 be restored, there is no cure, properly so called, for false quarter. All 

 that can be done is to restrict the disease within the narrowest possible 



