(6694) Classrooms, Interiors, Old Main, 1935

Two men and two women sit in a classroom in Wayne University's Old Main, Detroit, Michigan. In the center, a woman in a lab coat operates a machine, possibly a kymograph (respiration/ blood pressure monitor) or polygraph. A man nearby is hooked up to the machine with a cuff around his upper arm and tube around his chest. On the board at upper left are charts from various psychology classes.