eal affection, was exposed to severely inclement weather, for
several hours, and the next morning, complained of extreme pain in the
back, and of total inability to employ voluntarily the muscles of the
lower extremities, which were continually agitated with severe
convulsive motions. The physician who attended him employed those
means which seemed best calculated to relieve him; but with no
beneficial effect. The lower extremities were perpetually agitated
with strong palpitatory motions, and, frequently, three or four times
in a minute, suddenly raised with great vehemence two or three feet
from the ground, either in a forward or oblique direction, striking
one limb against the other, or against the chairs, tables, or any
substance which stood in the way. To check these inordinate motions,
no means were in the least effectual, except striking the thighs
forcibly during the more violent convulsions. No advantage was derived
from all the means which were employed during upwards of twelvemonths.
Full ten years after this period, the unhappy subject of this malady
was casually met in the street, shifting himself along, seated in a
chair; the convulsive motions having ceased, and the limbs having
become totally inert, and insensible to any impulse of the will.

It must be acknowledged, that in the well-known cases, described by
Mr. Potts, of that kind of Palsy of the lower limbs which is
frequently found to accompany a curvature of the spine, and in which a
carious state of the vertebrae is found to exist, no instructive
analogy is discoverable; slight convulsive motions may indeed happen
in the disease proceeding from curvature of the spine; but palpitating
motions of the limbs, such as belong to the disease here described, do
not appear to have been hitherto noticed.

Whilst striving to determine the nature and origin of this disease, it
becomes necessary to give the following particulars of an interesting
case of Palsy occasioned by a fall, attended with uncommon symptoms,
related by Dr. Maty, in the third volume of the Medical Observations
and Inquiries. The subject of this case, the Count de Lordat, had the
misfortune to be overturned from a pretty high and steep bank. His
head pitched against the top of the coach, and was bent from left to
right; his left shoulder, arm, and especially his hand, were
considerably bruised. At first he felt a good deal of pain along the
left side of his neck, but neither then, nor at a