Skin affections which deviate from the usual type afford the greatest interest for the dermatologist. These freaks are sooner or later recognized and, by the aid of the sensitized plate, become valuable records. Although the camera is a useful aid in registering these rare conditions, yet it can not always convey to the observer all the peculiar details of these exceptional lesions, nor can words sufficiently describe these anomalies.
The nearest approach to the ideal, and that which overcomes the deficiencies of the photograph, is the wax model. It is the truest means of illustrating the morphologic conditions, and with the assistance of pigment the natural colors displayed by the pathologic processes are imitated.
The models here exhibited are part of a collection made by Dr. Schamberg and the writer from patients attending the Polyclinic Hospital and the Southern Dispensary, Philadelphia. Their descriptions follow:
No. 1 represents a case of