1. Humm-Wadsworth temperament scale test asking questions relating to personality Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: undated Format: Image Agent: unknown
2. Personnel factors and how they are to be determined or measured. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
3. Score report for Dorothy Robinson on speed (operating), inspection, and dual (both). Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: 13906 Format: Image Agent: unknown
4. Score report for Caroline Jones on speed (operating), inspection, and dual (both). Collection: Early 20th Century Engineering Lantern Slides Set: Merit Rating Date: 13903 Format: Image Agent: unknown
