1. Drawings of three faces side profile. Labelled convex, plane, and concave. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
2. Two drawings upper lip and corner of mouth Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
3. Drawing of one face with labels on chin, jaw, and cheek. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
4. Mosso-Ergograph (after H. Lehmann), a devise used to measure muscle fatigue and work capacity from repeatedly moving a finger. Collection: Early 20th Century Engineering Lantern Slides Set: H. I. M. (Human Interaction Management) Date: 1880s Format: Image Agent: unknown
5. Experiment on dog to see salivating upon stimuli Collection: Early 20th Century Engineering Lantern Slides Set: H. I. M. (Human Interaction Management) Date: undated Format: Image Agent: unknown
6. Portrait of a middle-aged man in regards to man's development. Artist is Carl Bohnen, 1871-1951. Collection: Early 20th Century Engineering Lantern Slides Set: H. I. M. (Human Interaction Management) Date: undated Format: Image Agent: unknown
7. The image shows various machining processes, highlighting the movement of the tool and workpiece in each. Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: undated Format: Image Agent: unknown
8. John Smeaton's boring machine, Carron Iron Works Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Date: 1769 Format: Image Agent: unknown
9. Drawings of the faces of two men - the salesman type and the executive type, with comments on facial features. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
10. Drawings of two boys by Carl Bohnen. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
11. Drawings of the faces of two men - financial type and professional type, with comments on facial features. Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
12. Drawing of man illustrating "will regions" Collection: Early 20th Century Engineering Lantern Slides Set: Face-Related Data Date: undated Format: Image Agent: unknown
