1. Topography of skull showing which parts of the brain controlled abstract traits. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
2. Chart illustrating the relationship between mental age and occupation Collection: Early 20th Century Engineering Lantern Slides Set: H. I. M. (Human Interaction Management) Date: undated Format: Image Agent: unknown
3. Two photographs of two pairs of hands, one with palms facing inward, the other palms facing outward. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
