Girardot, Colombia, from a raft on the Magdalena River Hookworm Infections Malaria Colombia From March 18 to June 23, 1925, Dr. Sawyer traveled to Colombia to inspect the hookworm and malaria control programs there and visit local health departments. The journey to Bogata took him up the Magdalena River by boat and, on this flooded stretch, by balsa-wood raft. The caption on the back of the photograph reads, "Girardot from a raft on the river. Rio Magdalena in flood. April 29, 1925." Produced: 29 April 1925 Sawyer, Wilbur A. Photographic prints Archival Materials Still Image 1 pages nlm:nlmuid-101584931X69-img 101584931X69 http://resource.nlm.nih.gov/101584931X69 Profiles ID: LWBBFH No linguistic content Profiles in Science