PATHOLOGICAL CONDITIONS OF FEET. 



805 



compensation, by hcav bone-structure being formed at different 

 points. 



Succeeding to the atrophy of the coffin-bone, its appended car- 

 tillages become ossified, and two bone-columns rise up laterally, 

 one on each side of the short pastern bone, which is seen leaning 

 against the inner one, and is held by ligamentous bands extended 

 from the outer column. 



Figs, 708 and 709 also represent a hoof and the skeleton of the 

 near fore foot of a horse. This case is of great interest, and I ad- 



FiG. 706. 



duce it for the puipose of explaining something in a positive and 

 also a negative way about corns. 



In the estimation of all concerned, corns were the great cause 

 of suffering to this horse. Besides the usual paring of the sole, 

 Fig. 708 shows two openings due to the scooj)ing away of the hoof 

 where " the seat of corn'" was said to exist. The more the scoop- 

 ing away of the hoof w^ts persisted in, the greater was the suffering 

 caused by the destruction of the quick. The openings through 

 which the blood-colored dischai'ge descended are shown in Fig. 708 

 by two bands of paper passing through each angle of the hoof, at 

 its extremities, by the sides of the frog. 



Fig. 709 represents prominently a lateral view of the inside 

 aspect of the coffin-bone. A deep ulcerated cavity is shown at the 



