1. [Stopping mosquitoes at the border] (image 1) Publication: Produced: [1938-1941] Subject(s): Mosquito ControlBrazilMalaria Archival Collection: The Fred L. Soper Papers (Profiles in Science)
2. [Stopping mosquitoes at the border] (image 2) Publication: Produced: [1938-1941] Subject(s): Mosquito ControlBrazilMalaria Archival Collection: The Fred L. Soper Papers (Profiles in Science)
3. [Stopping mosquitoes at the border] (image 3) Publication: Produced: [1938-1941] Subject(s): Mosquito ControlBrazilMalaria Archival Collection: The Fred L. Soper Papers (Profiles in Science)