Any of several generalized skin disorders characterized by dryness, roughness, and scaliness, due to hypertrophy of the stratum corneum epidermis. Most are genetic, but some are acquired, developing in association with other systemic disease or genetic syndrome.
    

concept

Stony covering of the skin.

New species of man ...  : now exhibiting at Mr. Laxton's Rooms, no.23, New Bond Street : this young man is 30 years of age, covered with scales, with the exception of the face, soles of the feet, and palms of the hand, which are like those of any other man.

A hard case : there is now exhibiting in South Castle-street a female, a native of Holland, whose body, with the exception of the face and bust, is encrusted with a hard substance, which grows upon and completely covers the skin. This lady is 37 years of age ... Liverpool Albion.

An extraordinary freak of nature, or, a man encrusted with a barnacle or stone-like skin.

Wonderful production of nature : the greatest human curiosity! Now in existence, Master Thomas Jones, the Cambrian Porcupine Youth!! ... is now exhibiting, for a short time, at the Cosmorama Rooms, 209 Regent Street.

Ueber Xerosis Conjunctivae : Eine augenärztliche Abhandlung, der illustren medicinischen Facultät der Kgl. Univerität zu Breslau behufs Erlangung der venia docendi unterbreitet und in der Grossen Aula / von Hermann Cohn.

Ichthyosis

Images

Catalogue

Wonderful production of nature : the greatest human curiosity! Now in existence, Master Thomas Jones, the Cambrian Porcupine Youth!! ... is now exhibiting, for a short time, at the Cosmorama Rooms, 209 Regent Street.

Ueber Xerosis Conjunctivae : Eine augenärztliche Abhandlung, der illustren medicinischen Facultät der Kgl. Univerität zu Breslau behufs Erlangung der venia docendi unterbreitet und in der Grossen Aula / von Hermann Cohn.

De ichthyosi : dissertatio inauguralis ... / auctor Car. Phil. Gerh. Lintermann.

Ichthyosis.

A fish-like boy seen in Naples ("Bernardino Configilo"). Woodcut, ca. 1685.