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WILLIAMSON BRYDEN. 
reproducing itself, and consequently becomes of importance, 
first, to trim and remove any obstacle to the new growth, such 
as the old contracted wall, sole and frog, which only crowds 
the lamina, arrests circulation and hinders repair ; second, 
employ suitable remedies, especially such as will encourage 
the new growth to repair. 
The diseases of horses’ limbs must be divided into at least 
two classes: 
1. What may be called physio-pathological changes ; these 
include such diseases as spavins of all kinds, curbs, splints, 
springhalt, navicular disease, diseases of the lamina, so-called 
corns, quittors, etc., diseases and changes peculiar to the soli- 
ped species—all entirely curable, unless too long neglected, 
or improperly treated. They are always the result of hoof 
depravity, consequently impossible of successful treatment 
until the cause is removed by the renewed growth of horn, 
for then only can the derelict limb or the parts enclosed in 
the “horny box” ever be repaired. To treat such defects 
locally or directly can only fail, and the case ends in disappoint¬ 
ment. 
2. What may be regarded as the other class are such 
diseases and accidents as may affect any species of animals, 
and are generally amenable to direct or local treatment. A 
sharp distinction must be made between these two classes, for 
here is where the most signal failures to comprehend this sub¬ 
ject and treat the cases consistently and successfully have 
occurred. In what has just been described as the physio- 
pathalogical class, the following instructions must guide us in 
treatment. 
ist. Prepare the foot by softening the hoof, then reduce 
the wall all it will bear, rasp the wall thin, unless the animal 
is to be used, when enough must be left to nail the shoes to, 
the toe and the heels, however, must be well thinned, and so 
must the sole. If the bars are bent they must be thinned out; 
but the heel must also be weakened to correspond with the 
bar, for if this is not done it is liable to close. If the bar is 
straight, however, it may be left as a brace to force the 
quarter out when the heel-wall opposed to it is weakened. 
