326 
a. zundp:l. 
Considered on the side of the inferior face the old foundered 
hoof offers four remarkable lesions. Besides its oval form, a dis¬ 
position altogether different from that of the normal state, the 
sole is convex in all the anterior part of the plantar region, espe¬ 
cially at the point of the frog. There exists at that point a trans¬ 
versal tumor or enlargement, projecting sufficiently to exceed in 
height the inferior border of the wall. The solar sheet has been 
pushed outward by the pressure against the superior face from 
the contents of the horny box. and the foot is convex. This con¬ 
vexity never equals the entire extent of the foot, the deformity 
ending at the boundary of the inferior border of the bars, beyond 
which and backwards are found the cavities of the lateral lacunae 
of the frog, so much more elevated as the heels are also higher. 
The centre of this tumor or enlargement of the sole is often flexi¬ 
ble under the pressure of the finger, and generally bleeds easily 
on the application of the sharp tools of the blacksmith. It is not 
rare to see the sole perforated' through and through and showing 
the inferior border of the os pedis projecting through the border 
of the bone, which then soon becomes necrosed. This is the 
result of the excessive displacement of the os pedis and of the 
strong pressure upon the velvety tissue against the sole-tissue, 
which is atrophied or even destroyed. This is an ulcerating 
wound, somewhat semi-lunar, secreting a very offensive pus, with 
granulation and some proud flesh, or even separation of the sole. 
Between the sole and the wall the line of demarcation is no 
longer so well defined as in the normal state. At the toe, the 
mammae and the anterior part of the quarter, there is an excava¬ 
tion formed of softer horn of bad nature and less identified with 
the true horn of the wall and of the sole. A complete vacuity 
is often found, a cavity around the internal face of the wall at 
the toe and at the mammae of varying depth and size, but always 
larger at the inferior than at the superior end of the foot, where 
it gradually diminishes, and often contains a dry, granular 
mass, resulting from the drying of the blood, and the dried plastic 
lymph, mixed with small, horny, pulverized masses. This cavity 
is formed in front by the healthy wall and posteriorly by a new 
wall due to the secreted hoof thrown upon the podophyllous 
