112 OF THE DISEASES 



consequent inflammation of the lateral ligaments 

 of the pastern. 



Ring-bone is especially apt to show itself where 

 heavy horses are worked too early or severely on 

 the road. In some horses, especially in such as 

 are heavy, coarse, and badly bred, there appears 

 to be a predisposition to throw out ossific matter 

 without any assignable cause. 



Side bones, 89- Side bones, otherwise called ossified lateral 



or ossified 



lateral car- cartilages, are the result of the conversion into bone 



tilages. ... . 1 fn 



of the cartilaginous alse, or wings of the coffin 

 bone. They are most common in cart and heavy 

 horses, though not unfrequently found in animals 

 of a lighter breed. 



The bony deposit is generally believed to be the 

 result of inflammatory action set up in the lateral 

 cartilages by excessive concussion. Fast work will 

 sufficiently account for concussion in light horses, 

 whilst in those of heavy frame the lumbering gait 

 and weight of the carcase aggravate the evil. The 

 excessively heavy, clumsy, and badly fitted shoes so 

 commonly seen on cart horses must also increase 

 the jar and concussion. 



The system of shoeing cart horses, especially 

 in towns, is probably not without its effect in 

 producing this disease. The heels of these 

 horses, both in fore and hind feet, are frequently 

 so raised by calkins that no weight falls on 



