1. Excerpt from Fred Soper's diary Publication: Produced: [1 January-30 April 1928] Subject(s): Yellow FeverMosquito ControlBrazilOrganization and Administration Archival Collection: The Fred L. Soper Papers (Profiles in Science)
2. Excerpt from Fred Soper's diary Publication: Produced: [9 September-12 November 1927] Subject(s): Yellow FeverCause of DeathBrazil Archival Collection: The Fred L. Soper Papers (Profiles in Science)
3. Excerpt from Fred Soper's diary Publication: Produced: 13 April 1927 Subject(s): BrazilMosquito Control Archival Collection: The Fred L. Soper Papers (Profiles in Science)
