1. Excerpt from Fred Soper's diary Publication: Produced: [4-24 May 1926] Subject(s): ParaguayHookworm Infections Archival Collection: The Fred L. Soper Papers (Profiles in Science)
2. Excerpt from Report of the Director of the Hospital to the Corporation of the Rockefeller Institute for Medical Research, October 15, 1926 Publication: Produced: 15 October 1926 Subject(s): Immune SeraAntibodiesImmunologic FactorsStreptococcus pneumoniae Archival Collection: The Oswald T. Avery Collection (Profiles in Science)
