the
attack, and nearly always during recovery. In both sexes the bladder in
the latter stages is apt to be paralysed, and the accumulation of the
urine then becomes a prominent symptom. The recovery often commences after
relief has been obtained, but if the necessity be overlooked, death
generally ensues.

Paralysis of the hind extremities is occasionally witnessed, and when seen
is generally sudden in its appearance. Sometimes, however, the loss of
power is gradual, and when such is the case the hopes of a cure are always
diminished. If the power of motion be lost suddenly, costiveness mostly
exists; and if, on the other hand, it should be gradual, there may be
diarrhoea, which will terminate in death.

Twitches, choraea, or Saint Vitus's dance, are not very usual, and may
continue for months after every other symptom has subsided. All four limbs
are sometimes violently agitated, and even during sleep are not quiescent.
The motion is incessant, and when this is the case the animal dies, worn
out by the want of bodily rest. In the majority of instances only one limb
is affected; and a species of independence of volition, or incapability of
controlling its movements, accompanies the affection. Though never still,
the leg is comparatively useless, and is carried in a manner which denotes
this fact. The muscles of the trunk are less commonly attacked, but they
do not always escape. When the legs have not been thus affected, I have
known the abdominal and thoracic muscles to be troubled by continuous
twitchings; which, however, have been for the most part slight, and have
subsided more quickly than have those of the extremities, when they have
been diseased. Cholera comes on gradually; its commencement is hardly to
be perceived, and it is seldom observed before the distemper is fully
developed--even sometimes only when the disorder appears to be subsiding.
It is not rare for it to start up while the animal is apparently
recovering; and when it does so, it is always most difficult to remove. No
pain is felt in the affected limb; the part rather seems to lose some
portion of its sensibility.

When the hind parts are paralysed, feeling may be entirely gone; so that a
pin thrust into the flesh of those parts does not even attract the notice
of the dog. This does not occur in choraea, but the consciousness is dulled
by that affection. The convulsed limb may be more roughly handled than the
healthy ones; but violence will excit