28 WARRANTY OF 



If seen only in front of the pastern, whence the disease 

 generally extends itself round the front of the hoof, in 

 form of a ring, it is frequently of little consequence ; 

 but where it approaches the heels, the horse is fit for 

 slow work only, the flexibility of the cartilage by its 

 altered structure being lost. The cartilage is likely 

 to be fractured by the ascent of the internal struc- 

 ture of the hoof on any extreme pressure being given 

 to the frogs, either from accelerated speed or from 

 treading on a stone. At slow work horses with 

 these hoofs often last for years without accident, but 

 when they do fracture the ossified part, they should be 

 at once destroyed, or turned out till the fracture is 

 united, in which case, though not sound, they often go 

 apparently soundly, though they are ever afterwards 

 liable to accidents. Till this cure occurs they do not 

 move in pain, but are UNSOUND. 



Where the disorganization is only in front of the 

 pastern bone, and not in the way of any joint, or 

 approaching the heels, all inflammation or disease has 

 disappeared. The animal will suffer no inconvenience 

 for quick work, and is therefore sound, but shows a 



BLEMISH. 



Canker. 



Thrushes neglected will turn to canker. This dis- 

 ease in the hoof is easily detected, and is very trouble- 

 some to cure. A cankered horse is UNSOUND. 



