31. Letter from Fred L. Soper to Paulo C. A. Antunes Publication: Produced: 26 September 1968 Subject(s): BrazilUnited StatesAedesMosquito Control Archival Collection: The Fred L. Soper Papers (Profiles in Science)
32. Letter from Leona Baumgartner to Fred L. Soper Publication: Produced: 17 May 1966 Subject(s): LeprosyFinancial Support Archival Collection: The Fred L. Soper Papers (Profiles in Science)
33. Letter from Fred L. Soper to Eugene P. Campbell Publication: Produced: 6 October 1967 Subject(s): Yellow FeverDiagnosis Archival Collection: The Fred L. Soper Papers (Profiles in Science)
34. The United States and the Gorgas Memorial Institute of Tropical and Preventive Medicine and the Gorgas Memorial Laboratory Publication: Produced: 21 January 1965 Subject(s): Tropical MedicineFinancial SupportInternational CooperationLaboratories Archival Collection: The Fred L. Soper Papers (Profiles in Science)
35. Letter from Fred L. Soper to Leona Baumgartner Publication: Produced: 20 May 1966 Subject(s): LeprosyFinancial SupportLibraries, MedicalFinancing, Government Archival Collection: The Fred L. Soper Papers (Profiles in Science)
36. Letter from Fred L. Soper to Pedro Galindo Publication: Produced: 24 May 1966 Subject(s): Yellow FeverFellowships and Scholarships Archival Collection: The Fred L. Soper Papers (Profiles in Science)
37. Excerpt from Fred Soper's diary Publication: Produced: [30 January-28 February 1961] Subject(s): Financial SupportLaboratoriesPakistanCholeraMalariaEquipment and SuppliesGlobal Health Archival Collection: The Fred L. Soper Papers (Profiles in Science)
38. Excerpt from Fred Soper's diary Publication: Produced: [March-May 1961] Subject(s): International CooperationFinancial SupportOrganization and AdministrationVaccinesCholeraEquipment and Supplies Archival Collection: The Fred L. Soper Papers (Profiles in Science)
39. Excerpt from Fred Soper's diary Publication: Produced: [27 June-30 October 1961] Subject(s): International CooperationFinancial SupportCholeraAwards and PrizesVaccines Archival Collection: The Fred L. Soper Papers (Profiles in Science)
40. Excerpt from Fred Soper's diary Publication: Produced: [13 January 1965-20 March 1967] Subject(s): International CooperationFamily Planning ServicesPlagueMosquito Control Archival Collection: The Fred L. Soper Papers (Profiles in Science)