Jean Johnson at work in a laboratory while sitting at table with various equipment. Her back is mostly turned to the camera.
Two unidentified white female nurses working in laboratory. One is seated in front of a microscope and the other is standing at a table, adjusting equipment.
Doris Clark Graddy demonstrating lab techniques to visitors from Standard Oil Company (white men) who are standing behind her as she looks into a microscope.
Two unidentified female lab technicians (one white, one African American) working in a hospital testing lab. The white woman at the left is seen from the side working with lab equipment. The African...
Two unidentified women at separate tables in a corner of a laboratory. One working with bottles and petri dishes. Furthest woman has her back to the camera.
