photographs
Chen sitting at a lab bench in front of a microscope, looking at the camera. There are other miscellaneous papers and lamps on the lab bench.
Sharp standing outside in front of a building.
Bridges working at a tilted lab bench with a microscope.
Stockard sitting at a lab bench, facing the camera.
Crozier sitting at a desk while smoking a pipe
Hisaw sitting with one arm placed on a desk.
Hoadley sitting at a lab bench with one hand placed on a microscope.
Hober at a lab bench looking through microscope.
Jennings standing outside in front of a bush and a building.
Just standing outside in front of a bush with his left hand placed in his pants pocket.
Kappert sitting at a lab bench while looking through a microscope.
Baubour sitting in a rocking chair outside on a porch. He is holding a hat in his lap and a cigar in his right hand.