Renn is seated at a worktable with a single objective microscope. He is looking at the camera, and his body is oriented to the left of the frame. There are two glass slides next to his left hand, and a container with many slides on the table to his right. There is a small black case with a strap on the table against the wall, and the shelves in the background contain books and papersInscriptions on image and/or album page: Charles RennDigitized by: MBLWHOI Libraryimage/jpg black and white image reformatted digital