268 CYCLOPEDIA OF LIVE STOCK AND COMPLETE STOCK DOCTOR. 



16. — ^'Pumiced-foot, — ^When the union between the horny and sensible 

 lamellae, or little plates of the foot, is weakened, and the coffin-bone is 

 let down, and presses upon the sole, that horse must be unsound, and 

 unsound forever, because there are no means by which we can lift up the 

 coffin-bone again into its place. 



17. — '■'Quidding is unsoundness for the time ; but the unsoundness will 

 cease when the teeth are properly filed, or the catarrh relieved, or the 

 cause of this imperfect chewing removed. 



18. — '« Quittor is unsoundness. 



19. — '<■ Ring-bone. — Although when the bony tumor is small, and on one 

 side only, there is little or no lameness, and there are a few instances in 

 which a horse with ring-bone has worked for many years without lame- 

 ness ; yet, from the action of the foot, and the stress upon the part, the 

 inflammation and the formation of bone have such a tendency rapidly 

 to spread, that we must pronounce the slightest enlargement of the 

 pasterns or around the coronet, to be a cause of unsoundness. 



20. ''Sand crack is manifestly unsoundness ; but it may occur without 



the slightest warning, and no horse can be returned for one that is sprung 

 after purchase. 



21. — ''Spavin is unsoundness, whether bony or blood-spavin. In the 

 first, lameness is produced, at least at starting, in ninety -nine cases out 

 of a hundred, and there is enlargement of the hock, which rapidly spreads 

 with quick and hard work, although the horse may be capable of, and 

 may even get better at slow work. Blood-spavin is unsoundness, l)ecause, 

 althou ,'a it may not be productive of lameness, at slow work, the rapid 

 and powerful action of the hock in quicker motion will produce perma- 

 nent, although not considerable lameness, and which can scarcely ever 

 be with certainty removed. 



22.— "Splint.— It depends entirely on the situation of the bony tumor 

 on the inside of the shank-bone, whether it is to be considered as 

 unsoundness. If it is not in the neighborhood of any joint, so as to 

 interfere with its action, and if it does not press upon any ligament or 

 tendon, it can be no cause of unsoundness. 



23. "Tliickening of the Bach Sineivs, if pronounced, and occasioned 



with thickening of the leg, is unsoundness. 



24.—" TJioroughpin, when of great size, and thrush, when pronounced, 

 should undoubtedly be regarded as unsoundness, and is so regarded by 

 good authorities." 



In fact, in many disabilities, the most discriminating judgment shoulci 

 be used. Since a disability that would detract but little from a horse 

 for one use, might render him comparatively worthless for another. 



