e of the nose, and is the Indian term for the disease
caused by the deposition of larvae in the nose. It is supposed to be
more common in South America than in India.

CHAPTER XVI.

ANOMALOUS SKIN-DISEASES.

Ichthyosis is a disease of the skin characterized by a morbid
development of the papillae and thickening of the epidermic lamellae;
according as the skin is affected over a larger or smaller area, or
only the epithelial lining of the follicles, it is known as ichthyosis
diffusa, or ichthyosis follicularis. The hardened masses of epithelium
develop in excess, the epidermal layer loses in integrity, and the
surface becomes scaled like that of a fish. Ichthyosis may be
congenital, and over sixty years ago Steinhausen described a fetal
monster in the anatomic collection in Berlin, the whole surface of
whose body was covered with a thick layer of epidermis, the skin being
so thick as to form a covering like a coat-of-mail. According to Rayer
the celebrated "porcupine-man" who exhibited himself in England in 1710
was an example of a rare form of ichthyosis. This man's body, except
the face, the palms of the hands, and the soles of the feet, was
covered with small excrescences in the form of prickles. These
appendages were of a reddish-brown color, and so hard and elastic that
they rustled and made a noise when the hand was passed over their
surfaces. They appeared two months after birth and fell off every
winter, to reappear each summer. In other respects the man was in very
good health. He had six children, all of whom were covered with
excrescences like himself. The hands of one of these children has been
represented by Edwards in his "Gleanings of Natural History." A picture
of the hand of the father is shown in the fifty-ninth volume of the
Philosophical Transactions.

Pettigrew mentions a man with warty elongations encasing his whole
body. At the parts where friction occurred the points of the
elongations were worn off. This man was called "the biped armadillo."
His great grandfather was found by a whaler in a wild state in Davis's
Straits, and for four generations the male members of the family had
been so encased. The females had normal skins. All the members of the
well-known family of Lambert had the body covered with spines. Two
members, brothers, aged twenty-two and fourteen, were examined by
Geoffroy-Saint-Hilaire. This thickening of the epidermis and hair was
the effect of some morbid predisposition