American Veterinary Review, 
MAY, 1882. 
ORIGINAL ARTICLES. 
THE HORSE’S FOOT. 
By A. Zundel. 
(Con tinned from page 6.) 
contracted heels—hoof-bound. — Continued. 
III. Pathological Anatomy .—We have indicated the external 
changes of the hoof. The tissues that have been long enclosed 
in the contracted foot become atrophied; molecular changes do 
not take place as in the normal state ; they become changed in 
aspect, composition and properties; they become denser and 
more compact, and are no more able to fulfil, to the same extent, 
their physiological functions. 
The plantar cushion is so completely pressed upon itself that 
the stratified structure of its fibrous layers can scarcely be dis¬ 
tinguished, and the presence in the interstices of the yellow 
fibrous substance is with difficulty observed. It forms only a 
homogeneous mass, whitish in color, resisting in consistency, and 
lardaceous in aspect. The dilated bulbs which are above the 
cushion are also considerably diminished in size, and present, 
when cut through, a uniform white color, its composing substance 
being reduced to a single inelastic mass. 
The unguial phalanx becomes deformed by degress, loses its 
circular shape and becomes of an elongated oval form. Its lat¬ 
eral faces assume a perpendicular direction; its structure is 
modified; its substance becomes more compact, and the small 
vascular openings are obliterated, while the largest are increased 
