VI. Observations on certain horny excrescences of the human body

Abstract

The history of diseases belongs not properly to the province of the naturalist or philosopher; it is intimately connected with the inquiries of the physician and anatomist; but when disease becomes a cause of the formation of parts similar to others existing in nature, but rendered uncommon by novelty of situation, or produced in animals to which they are not naturally appropriated, it may be considered as having instituted a monstrous variety, highly deserving of attention from the naturalist.