Description: [caption id="" align="aligncenter" width="366" caption="Heads and Fragments of Heads of Humeri, from the Photographic Catalogue of the Surgical Section, 1865, by William Bell, Albumen print on paper mounted on paperboard, Smithsonian American Art Museum, Museum purchase from the Charles Isaacs Collection made possible in part by the Luisita L. and Franz H. Denghausen