Stereoscopic Skin Clinic is the new goatse

Caution: This link will take you a 3D online presentation of images from an atlas of skin diseases, "consisting of color stereoscopic illustrations and a text in the form of clinical lectures, designed for the use of practitioners and students of medicine." Photographed by S. I. Rainforth, M.D., of New York, and published in 1911. ( thanks, Soylent and Macki )