EXOSTOSIS. 47 
‘scutiform layers are inflamed, lime chalks are deposited in them, bony» 
Fig. 108.—Phalangeal Ringbone. 
degeneration takes place” (Bouley). Violent reactions, not proportioned” 
to the resistance of the tissues, traumatisms, wounds on the coronet, car-. 
Fig. 109.—Sidebones. with atrophy of the third phalanx. 
tilaginous quittor treated by caustic injections, are as many causes of this: 
‘ossification of fibro-cartilages. Among the other etiological influences: 
