194 



VETEEINAKY MEDICINE AND SUKGEKY. 



weight, the exostosis generally develojDS on or towards the inner side, 

 and usually a little above the centre of the bone between the knee and 

 the fetlock. 



Percivall describes five classes of splints : 



1st. Simple. 



■^-^ 



Fig. 98. 



Ordinary form of splint on the inner side 

 of the fore-leg. a, Intermetacarpal groove, 

 smooth and healthy. 6, b, Osseous deposit, 

 c. Irregular bony growths. 

 A comparison of Figs. 98 and 99 with Figs. 100 and 101 will show the changes in the bone in splint. 



Compound splint. a, Intermetacarpal 

 groove, healthy. 6, h, Osseous deposits, 

 c, c, c, Irregular bony growths. 



2d. Double or pegged sj)lints; that is, those which are found upon 

 both aspects of the limb, with an osseous communicating bar running 

 from one to the other. 



3d. Those close to the knee. 



4th. Consisting of two or more exostoses upon one side of the leg, one 

 above the other, with perhaps an osseous communication. 



5th. Little bony excrescences, involving the knee-joint, namely, the 

 head of the metacarpus minor internus, and trapezoid, or metacarpus 

 minor externus, and unciform. 



