21. The Soluble Specific Substance of Pneumococcus: Second Paper Publication: Rockefeller University. Press, August 1924 Archival Collection: The Oswald T. Avery Collection (Profiles in Science)
22. Medical Education in Italy Publication: Produced: [October 1924 - April 1925] Subject(s): Education, MedicalItaly Archival Collection: The Alan Gregg Papers (Profiles in Science)
23. Letter from Richard M. Pearce to Alan Gregg Publication: Produced: 17 January 1924 Archival Collection: The Alan Gregg Papers (Profiles in Science)
24. Pearce diary entry expressing support for Gregg's learning experience in Italy Publication: Produced: 5 December 1924 Subject(s): Research Support as TopicItaly Archival Collection: The Alan Gregg Papers (Profiles in Science)
25. Letter from Richard M. Pearce to Alan Gregg Publication: Produced: 6 June 1924 Archival Collection: The Alan Gregg Papers (Profiles in Science)
26. Letter from Alan Gregg to family and friends Publication: Produced: 25 March 1924 Archival Collection: The Alan Gregg Papers (Profiles in Science)
27. Letter from Simon Flexner, Rockefeller Institute for Medical Research to Michael Heidelberger Publication: Produced: 23 June 1924 Subject(s): Crystallography, X-RayAllergy and Immunology Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
28. Excerpts from Michael Heidelberger's diary during his sabbatical studies in Europe Publication: Produced: [March-September 1924] Subject(s): Travel Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
29. Pope A. Lawrence Papers Publication: Produced: 1924-1983 Subject(s): CarcinogensEnvironmental HealthNeoplasmsRadiologic HealthNational Cancer Institute (U.S.)United States. Environmental Protection AgencyUnited States. Public Health Service
30. Letter from Lawrence Kolb to Alexander Lambert Publication: Produced: 29 December 1924 Archival Collection: The Lawrence Kolb Papers (Profiles in Science)
