degree to the paralysis of the muscles of the arms in
colica saturnina. It would seem, that the muscles of the legs in walking
get a sympathy with the lower parts of the intestines, and those of the
arms in variety of employment obtain a sympathy with the higher parts of
them. See Cholera and Ileus.

11. _Zona ignea nephritica._ Nephritic shingles. The external skin about
the loins and sides of the belly I suppose to have greater mobility in
respect to sensitive association, than the external membrane of the kidney;
and that their motions are by some unknown means thus associated. When the
torpor or beginning inflammation of this membrane ceases, the external skin
becomes inflamed, in its stead, and a kind of herpes, called the shingles,
covers the loins and sides of the belly. See Class II. 1. 5. 9.

12. _Eruptio variolarum._ After the inflammation of the inoculated arm has
spread for a quarter of a lunation, it affects the stomach by reverse
sympathy; that is, the actions of the stomach are associated with those of
the skin; and as much sensorial power is now exerted on the inflamed skin,
the other part of this sensitive association is deprived of its natural
share, and becomes torpid, or inverts its motions. After this torpor of the
stomach has continued a time, and much sensorial power is thus accumulated;
other parts of the skin, which are also associated with it, as that of the
face first, are thrown into partial inflammation; that is, the eruptions of
the small-pox appear on the face.

For that the variolous matter affects the stomach previous to its eruption
on the skin appears from the sickness at the commencement of the fever; and
because, when the morbid motions affect the skin, those of the stomach
cease; as in the gout and erysipelas, mentioned below. The consent between
the stomach and the skin appears in variety of other diseases; and as they
both consist of surfaces, which absorb and secrete a quantity of moisture,
their motions must frequently be produced together or in succession; which
is the foundation of all the sympathies of animal motions, whether of the
irritative, sensitive, or voluntary kinds.

Now as the skin, which covers the face, is exposed to greater variations of
heat and cold than any other part of the body; it probably possesses more
mobility to sensitive associations, not only than the stomach, but than any
other part of the skin; and is thence affected at the eruption of the
small-