Heilbrunn is seated at a table with a microscope with one objective lens. He is fully facing the camera, leaning on the table to his left. There are several laboratory glassware pieces in front of him, and the shelf behind him holds petri dishes and a large, labeled glass bottle.Inscriptions on image and/or album page: (bottom margin) "Heilbrunn July 1928"Digitized by: MBLWHOI Libraryimage/jpg black and white image reformatted digital