e appears
preferable to the variolous inoculation.

In constitutions predisposed to scrophula, how frequently we see the
inoculated Small-pox, rouse into activity that distressful malady.
This circumstance does not seem to depend on the manner in which the
distemper has shewn itself, for it has as frequently happened among
those who have had it mildly, as when it has appeared in the contrary
way.

There are many, who from some peculiarity in the habit resist the
common effects of variolous matter inserted into the skin, and who
are in consequence haunted through life with the distressing idea of
being insecure from subsequent infection. A ready mode of dissipating
anxiety originating from such a cause must now appear obvious. And,
as we have seen that the constitution may at any time be made to feel
the febrile attack of Cow-pox, might it not, in many chronic diseases
be introduced into the system, with the probability of affording
relief, upon well-known physiological principles?

Although I say the system may at any time be made to feel the febrile
attack of Cow-pox, yet I have a single instance before me where the
virus acted locally only, but it is not in the least probable that
the same person would resist the action both of the Cow-pox virus and
the variolous.

Elizabeth Sarsenet lived as a dairy maid at Newpark farm, in this
parish. All the cows and the servants employed in milking had the
Cow-pox; but this woman, though she had several sores upon her
fingers, felt no tumors in the axillae, nor any general indisposition.
On being afterwards casually exposed to variolous infection, she had
the Small-pox in a mild way.--Hannah Pick, another of the dairy maids
who was a fellow-servant with Elizabeth Sarsenet when the distemper
broke out at the farm was, at the same time infected; but this young
woman had not only sores upon her hands, but felt herself also much
indisposed for a day or two. After this, I made several attempts to
give her the Small-pox by inoculation, but they all proved fruitless.
From the former Case then we see that the animal economy is subject
to the same laws in one disease as the other.

The following Case which has very lately occurred renders it highly
probable that not only the heels of the horse, but other parts of the
body of that animal, are capable of generating the virus which
produces the Cow-pox.

An extensive inflammation of the erysipelatous kind, appeared without
any appa