decreased
irritability; and want of the necessaries of life that of increased
voluntarity.

* * * * *

SECT. XXXII.

DISEASES OF IRRITATION.

I. _Irritative fevers with strong pulse. With weak pulse. Symptoms of
fever, Their source._ II. 1. _Quick pulse is owing to decreased
irritability_. 2. _Not in sleep or in apoplexy._ 3. _From inanition.
Owing to deficiency of sensorial power._ III. 1. _Causes of fever. From
defect of heat. Heat from secretions. Pain of cold in the loins and
forehead._ 2. _Great expense of sensorial power in the vital motions.
Immersion in cold water. Succeeding glow of heat. Difficult respiration
in cold bathing explained. Why the cold bath invigorates. Bracing and
relaxation are mechanical terms._ 3. _Uses of cold bathing. Uses of
cold air in fevers._ 4. _Ague fits from cold air. Whence their
periodical returns._ IV. _Defect of distention a cause of fever.
Deficiency of blood. Transfusion of blood._ V. 1. _Defect of momentum
of the blood from mechanic stimuli. 2. Air injected into the
blood-vessels._ 3. _Exercise increases the momentum of the blood._ 4.
_Sometimes bleeding increases the momentum of it._ VI. _Influence of
the sun and moon on diseases. The chemical stimulus of the blood.
Menstruation obeys the lunations. Queries._ VII. _Quiesence of large
glands a cause of fever. Swelling of the praecordia._ VIII. _Other
causes of quiescence, as hunger, bad air, fear, anxiety._ IX. 1.
_Symptoms of the cold fit._ 2. _Of the hot fit._ 3. _Second cold fit
why._ 4. _Inflammation introduced, or delirium, or stupor._ X.
_Recapitulation. Fever not an effort of nature to relieve herself.
Doctrine of spasm._

I. When the contractile sides of the heart and arteries perform a greater
number of pulsations in a given time, and move through a greater area at
each pulsation, whether these motions are occasioned by the stimulus of the
acrimony or quantity of the blood, or by their association with other
irritative motions, or by the increased irritability of the arterial
system, that is, by an increased quantity of sensorial power, one kind of
fever is produced; which may be called Synocha irritativa, or Febris
irritativa pulsu forti, or irritative fever with strong pulse.

When the contractile sides of the heart and arteries perform a greater
number of pulsations in a given time, but m