Prof. Charles F. Himes 1876 (ca) [Collection of scientific equipment at Dickinson College, including Dr. Joseph Priestly's burning lens and air gun and Professor Walter R. Johnson's rotascope]
Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s01514 (digital file from original photo, front) LC-DIG-stereo-2s01514 (digital file from original photo, back)
Attribution to Himes based on his position at Dickinson College.
