y in ventilation
and cleanliness; hence the patients should be removed into cottages distant
from each other, or into tents; and their faeces buried as soon as may be;
or conveyed into a running stream; and themselves should be washed with
cold or warm water after every evacuation. For the contagious matter
consists in the mucous or purulent discharge from the membrane which lines
the intestines; and not from the febrile perspiration, or breath of the
patients. For the fever is only the consequence and not the cause of
contagion; as appears from Genus the Fifth of this Order, where contagion
exists without fever.

19. _Gastritis superficialis._ Superficial inflammation of the stomach. An
erysipelatous inflammation of the stomach is mentioned by Dr. Cullen from
his own observations; which is distinguished from the inflammatory
gastritis by less pain, and fever, and by an erysipelatous redness about
the fauces. Does this disease belong to aphtha?

20. _Enteritis superficialis._ Superficial inflammation of the bowels is
also mentioned by Dr. Cullen from his own observation under the name of
enteritis erythematica; and is said to be attended with less pain and
fever, without vomiting, and with diarrhoea. May not this disease be
referred to aphtha, or to dysentery?

* * * * *

ORDO I.

_Increased Sensation._

GENUS IV.

_With the Production of new Vessels by internal Membranes or Glands,
without Fever._

Where inflammation is produced in a small part, which has not great natural
sensibility, the additional sensation does not produce an increased action
of the arterial system; that is, the associated motions which are employed
in the circulation of the blood, those for instance of the heart, arteries,
glands, capillaries, and their correspondent veins, are not thrown into
increased action by so small an addition of the sensorial power of
sensation. But when parts, which naturally possess more sensibility, become
inflamed, the quantity of the sensorial power of sensation becomes so much
increased, as to affect the associated motions belonging to the
circulation, occasioning them to proceed with greater frequency; that is, a
fever is induced. This is well exemplified in the internal and superficial
paronychia, one of which is attended with great pain and fever, and the
other with little pain and no fever. See Class II. 1. 2. 19. and II. 1. 4.
5.

From hence it appears, that the sensiti