igaments follow in their
wake.

As, however, this treatise is not intended to deal with the art of shoeing,
the reader must be referred to other works for further information. In
addition to Fleming's, there may be mentioned, among others, Hunting's 'Art
of Horse Shoeing,' and the very excellent volume of Messrs. Dollar and
Wheatley on the same subject. Leaving the forge, we may next look to the
nature of the animal's work, and the conditions under which he is kept, for
active causes in the production of disorders of the foot. From the yielding
softness of the pasture he is called to spend the bulk of his time upon the
hard macadamized tracks of our country roads, or the still more hard and
more dangerous asphalt pavings or granite sets of our towns. The former,
with the bruises they will give the sole and frog from loose and scattered
stones, and the latter, with the increased concussion they will entail on
the limb, are active factors in the troubles with which we are about to
deal. Upon these unyielding surfaces the horse is called to carry slowly or
rapidly, as the case may be, not only his own weight, but, in addition, is
asked to labour at the hauling of heavy loads. The effects of concussion
and heavy traction combined are bound primarily to find the feet, and such
diseases as side-bones, ringbones, corns, and sand-cracks commence to make
their appearance.

Again, as opposed to the comparative healthiness of the surroundings when
at grass, consideration must be given to the chemical changes the foot is
frequently subjected to when the animal is housed.

Only too often the bedding the animal has to stand upon for several hours
of the twenty-four can only be fitly described as 'filthy in the extreme.'
The ammoniacal exhalations from these collected body-discharges must, and
do, have a prejudicial effect upon the nature of the horn, and, though slow
in its progress, mischief is bound sooner or later to occur in the shape of
a weakened and discharging frog, with its concomitant of contracted heels.
Lucky it is in such a case if canker does not follow on.

Observers, too, have chronicled the occurrence in horse's feet of disease
resulting from the use of moss litter. Tenderness in the foot is first
noticeable, which tenderness is afterwards followed by a peculiar softening
of the horn of the sole and the frog. What should be a dense, fairly
resilient substance is transformed into a material affording a yielding
sen