of and fixed it to the sound part. The
hoof remained in position while the new horn grew from the top, and the
horse hunted again the same season.'[A]

[Footnote A: _Veterinary Record_, vol. ix., p. 501 (Bower).]

_Sequels_.--Either of the complications we have mentioned--as, for
instance, Arthritis, Sand-crack, or Quittor--may persist and remain as
sequels to the case. In addition to these, there may be left behind
a cavity in the horn of the wall (see Fig. 109), or a loss of the
horn-substance of the wall proper, as that depicted in Fig. 112, or
described under the heading of False Quarter.

[Illustration: Fig. 112.--HOOF WITH A CAVITY IN THE SUBSTANCE OF THE WALL
FOLLOWING UPON 'TREAD' TO THE CORONET.]

The treatment of Arthritis, Sand-crack, Quittor, False Quarter, and
Seedy-toe, will be found in the chapters devoted to their consideration.

2. _Chronic_.

_Definition_.--Coronitis in which, owing to the persistence of the cause,
inflammatory phenomena continue, resulting in the growth of large fibrous
tumours about the coronet.

_Causes_.--In many cases it is possible, of course, that abnormal large
growths in this position may have an origin similar to that of neoplasms
elsewhere--that is to say, an origin as yet undiscovered. There is no
doubt, however, that the majority of the huge enlargements about the
coronet have their starting-point in one or other of the diseases to
which the foot is liable, in which the cause remains, and a low type of
inflammation persists.

In chronic and neglected suppurating corn, in untreated quittor, and in
long-standing complicated sand-crack, for instance, we have conditions in
which pus and other septic matters find ready entrance into the subcoronary
tissues. Should either of these be neglected, or should the pus formation
from the onset take on a slow but gradually spreading form (in other words,
should either of these cases run a chronic rather than an acute course)
then, with the persistence of the inflammatory phenomena so caused, is
bound to result a steady and increasing growth of inflammatory fibrous
connective tissue. This, as it grows, becomes in its turn penetrated by the
ever-invading pus, and, under the stimulus thus caused, itself throws out
new tissue. And so, constantly excited, the tumour-like mass tends to
steady increase in size, until enlargements are formed which one may
sometimes truly term enormous.

_Symptoms_.--The appearance of the growth is, of