of
baldness from fright; and Leo Africanus, in his description of Barbary,
describes endemic baldness. Neyronis makes the following observation: A
man of seventy-three, convalescent from a fever, one morning, about six
months after recovery perceived that he had lost all his hair, even his
eyelashes, eyebrows, nostril-hairs, etc. Although his health continued
good, the hair was never renewed.

The principal anomalies of the nails observed are absence, hypertrophy,
and displacement of these organs. Some persons are born with
finger-nails and toe-nails either very rudimentary or entirely absent;
in others they are of great length and thickness. The Chinese nobility
allow their finger-nails to grow to a great length and spend much time
in the care of these nails. Some savage tribes have long and thick
nails resembling the claws of beasts, and use them in the same way as
the lower animals. There is a description of a person with
finger-nails that resembled the horns of a goat.

Neuhof, in his books on Tartary and China, says that many Chinamen have
two nails on the little toe, and other instances of double nails have
been reported.

The nails may be reversed or arise from anomalous positions.
Bartholinus speaks of nails from the inner side of the digits; in
another case, in which the fingers were wanting, he found the nails
implanted on the stumps. Tulpius says he knew of a case in which nails
came from the articulations of three digits; and many other curious
arrangements of nails are to be found.

Rouhuot sent a description and drawing of some monstrous nails to the
Academie des Sciences de Paris. The largest of these was the left great
toe-nail, which, from its extremity to its root, measured 4 3/4 inches;
the laminae of which it consisted were placed one over the other, like
the tiles on a roof, only reversed. This nail and several of the others
were of unequal thickness and were variously curved, probably on
account of the pressure of the shoe or the neighboring digits. Rayer
mentions two nails sent to him by Bricheteau, physician of the Hopital
Necker, belonging to an old woman who had lived in the Salpetriere.
They were very thick and spirally twisted, like the horns of a ram.
Saviard informs us that he saw a patient at the Hotel Dieu who had a
horn like that of a ram, instead of a nail, on each great toe, the
extremities of which were turned to the metatarsus and overlapped the
whole of the other toes of eac