250 
MANUAL OF MODERN FARRIERY 
is caused bv the pressure of a stone or of the shoe on the sole 
is occasioned by inflammation of the sensitive sole. From the 
same cause, corns between the crust and the sole result. 
r. The coronary ring of the crust. 
a The covering of the coronary ligament, from which the crust 
is secreted. 
t. The sensible laminae, to which the crust is attached, 
u. v. The crust, or wall of the foot. 
w. The place of bleeding at the toe. 
x. The horny sole. 
y. The cleft of the horny frog 
It is obvious, from the situation which the suspensory 
ligament occupies, that splints formed backward on the leg 
are more liable to produce lameness than those which are 
formed on the side of the leg ; because they interfere with 
the motion of this ligament, and if large may press upon 
and wound it. The chief action of the suspensory ligament 
is to suspend the sesamoid bone in its place. 
It will be seen by the figure above described, that the 
pasterns are united to the shank in an oblique direction, 
differing in degree of obliquity with the various breeds of 
horses. A portion of the weight which falls upon the 
pasterns must be communicated to the sesamoid bones. 
The yielding of the pasterns, taken in connexion with 
their oblique position, is a beautiful contrivance to prevent 
jarring in the action of the horse; and this is materially 
assisted by the sesamoid being suspended, and no bone being 
under it; so that the suspensory ligament gradually yields, 
lengthens, and contracts in proportion to the weight or 
pressure applied to it, thus rendering all severe concussion 
impossible, because it yields to the force it has to sustain, 
and lengthens ; but as soon as the foot is raised from the 
ground and pressure is removed, its elastic power is again 
exerted, and it contracts to its natural length, and the sesa¬ 
moid bone springs back into its place, and by this quick and 
