by bony deposits round
the seat of the original injury, then a favourable modification of the
condition is not so likely to result.

The benefit to be derived from the shoe with an extended toe-piece in a
case of excessive knuckling is admirably shown in a brief report of a case,
under the title of 'Hooked Foot,' in vol. xiv. of the _Veterinary Record_,
p. 716:

'An eighteen months' old filly showed a deformity of the third phalanx,
resulting in her walking with the front face of the hoof on the ground. The
flexors were apparently all right, and the bending back seemed to be due to
contraction of the ligaments of the joint and the sheath of the perforans.

'On the ground of absence of contraction of the flexors, or atrophy and
paralysis of the extensors, the surgeon considered the lesion curable by
simple orthopaedic measures. By means of an elongated toe-piece to the
shoe and calkins, which were shortened every fifteen days, the filly was
completely cured in seventy days.'

H. THE CROOKED FOOT.

(_a_) THE FOOT WITH UNEQUAL SIDES.

_Definition_.--The foot thus affected has one side of the wall higher than
the other.

_Symptoms_.--This deformity is the better recognised when the foot on the
floor is viewed from behind. In addition to the difference between the
height of the inner and outer heel is seen at once a deviation in the
normal direction of the horn. That of the higher side is distinctly more
upright than that of the lower, and runs from above downwards and inwards
towards the axis of the foot, while the horn of the lower side maintains
its normal direction of downwards and outwards.

From what we have said before on contracted foot, this bending in of
the wall of the upright side will at once be recognised as a form of
contraction. It is, in fact, contraction confined to one-half of the foot
only, and, as a result, the upright side of the crooked foot is prone to
the troubles arising from that condition. Corns are frequent, and atrophy
of that half of the frog on the affected side supervenes. With the
inflammatory changes accompanying these conditions we find the horn of the
affected side deteriorating in quality. It becomes dry and brittle, and
extremely liable to sand-crack. At the same time, thrush of the contracted
frog begins to make its appearance.

_Causes_.--More often than not this condition is a result of the
conformation of the limb. According as the build above inclines the animal
to 't