DESCRIPTION OF PLATE IV. 



LAMINITIS OR FEVER IN THE FEET. (Percival.) 



A longitudinal section has, in this Plate, been made of the near fore foot 



from the fetlock downwards. 

 It will be observed that the cofl&n-bone (a), which, had it been in its 

 normal or natural position, would have lain slanting parallel to, as 

 well as in close apposition with, the wall of the hoof {b, c), has its 

 too (d), instead of being advanced to c, descending and resting 

 upon the middle of the sole, which, from the pressure of it, has 

 bulged (at d), or, as farriers say, become pumice. 

 The dislocation or tilting of the coflQn-bone upon the sole, necessarily 

 causes a space within the foot between it and the wall of the hoof 

 {e, f). This, we find, becomes filled up with a sort of callus, 

 which in the course of time undergoes a gradual transformation 

 into horny substance: as is intended to be shown by the yellow tint 

 the drawing exhibits in the middle portions of the callus. 



g, Section of the pastern bone. 



li, Section of the coronet bone. 



k. Section of the posterior parts of the foot. 



* i i. Sections of the tendons. 



