late of silver of the shape and form
of the roof of the mouth; from the front edge to the back edge of this
silver plate four or five holes are made in a straight line large enough
for a needle to pass through them; on the back of it is then sewed a piece
of sponge; which when expanded with moisture is nearly as large as the
silver plate. This sponge is slipped through the division of the bone of
the palate, so as to lie above it, while the silver plate covers the
aperture beneath, and is suspended by the expanding sponge. This is removed
every night and washed, and returned into its place in the morning; on this
account it is convenient to have five or six of them, for the sake of
cleanliness. I have been more particular in describing this invention, as I
do not know the name, or place of residence, of the maker.

* * * * *

ORDO II.

_Decreased Irritation._

GENUS III.

_The Decreased Action of the Absorbent System._

Some decrease of heat attends these diseases, though in a less degree than
those of the last genus, because the absorbent system of glands do not
generate so much heat in their healthy state of action as the secerning
system of glands, as explained in Class I. 1. 3.

SPECIES.

1. _Mucus faucium frigidus._ Cold mucus from the throat. Much mucus, of
rather a saline taste, and less inspissated than usual, is evacuated from
the fauces by hawking, owing to the deficient absorption of the thinner
parts of it. This becomes a habit in some elderly people, who are
continually spitting it out of their mouths; and has probably been brought
on by taking snuff, or smoking tobacco; which by frequently stimulating the
fauces have at length rendered the absorbent vessels less excitable by the
natural stimulus of the saline part of the secretion, which ought to be
reabsorbed, as soon as secreted.

M. M. A few grains of powder of bark frequently put into the mouth, and
gradually diffused over the fauces. A gargle of barley water.

2. _Sudor frigidus._ The cold dampness of the hands of some people is
caused by the deficient absorption of perspirable matter; the clammy or
viscid feel of it is owing to the mucous part being left upon the skin. The
coldness is produced both by the decreased action of the absorbent system,
and by the evaporation of a greater quantity of the perspirable matter into
the air, which ought to have been absorbed.

M. M. Wash the hands in lime water, or wit