1. Are you in this? Author(s): Baden-Powell of Gilwell, Robert Stephenson Smyth Baden-Powell, Baron, 1857-1941, artist Publication: Petrogradʺ : Unionʺ, 1916 Subject(s): NursesMilitary PersonnelCooperative BehaviorWorld War IUnited Kingdom
2. Letter from Fred L. Soper to Dudley A. Reekie Publication: Produced: 16 September 1943 Subject(s): Typhus, Epidemic Louse-BorneCooperative BehaviorLice Infestations Archival Collection: The Fred L. Soper Papers (Profiles in Science)
3. Letter from Fred L. Soper to Wilbur A. Sawyer Publication: Produced: 7 February 1944 Subject(s): Typhus, Epidemic Louse-BorneCooperative BehaviorLice Infestations Archival Collection: The Fred L. Soper Papers (Profiles in Science)