unar days
of rest or quiescence of the affected part will generally restore its
action by accumulation of irritability, and consequent increase of
association, as in hemicrania, Class IV. 2. 2. 8. But when the heart and
arteries become torpid, either primarily, or by their sympathy with the
stomach, this accumulation of the sensorial power of irritation can take
place but slowly; _as to rest is death_! This explains the cause of the
duration of fevers with weak pulse, which continue a quarter, or half, or
three quarters, or a whole lunation, or still longer, before sufficient
accumulation of irritability can be produced to restore their natural
strength of action.

6. If the absorbent vessels, which are spread around the neck of the
bladder, become torpid by their direct sympathy with the absorbents of the
skin in cold fits of fever; the urine, which is poured into the bladder in
but small quantity from the torpid kidneys, has nevertheless none of its
aqueous saline part reabsorbed; and this saline part stimulates the bladder
to empty itself frequently, though the urine is in small quantity. Which is
not therefore owing to any supposed spasm of the bladder, for the action of
it in excluding the urine is weak, and as much controlable by the will as
in ordinary micturition.

7. If the beginnings or absorbent mouths of the venous system remain
torpid, petechiae or vibices are produced in fevers, similar to those which
are seen in scurvy without fever. If the skin was frequently moistened for
an hour, and at the same time exposed to the common air, or to oxygen gas,
it might contribute to turn the black colour of these points of
extravasated blood into scarlet, and thus by increasing its stimulus
facilitate its reabsorption? For oxygen gas penetrates moist animal
membranes though not dry ones, as in the lungs during respiration.

8. When the sensorial power of sensation is introduced into the arterial
system, other kinds of compound fevers are produced, which will be spoken
of in their place.

III. _Termination of the cold Fit._

1. If all the parts, which were affected with torpor, regain their
irritability, and associability, the cold paroxysm of fever ceases; but as
some of the parts affected were previously accustomed to incessant action,
as the heart and arteries, and others only to intermitted action, as the
stomach and intestines; and as those, which are subjected during health to
perpetual action, accumulate se