21. Histological laboratory and students in Colombia Publication: Produced: [1923?] Subject(s): Education, MedicalLaboratoriesColombia Archival Collection: The Alan Gregg Papers (Profiles in Science)
22. Report on Medical Education--University of Mexico--Based on Visit to Mexico August 13-27, 1923, by Doctor Alan Gregg Publication: Produced: 22 October 1923 Subject(s): Education, MedicalSchools, MedicalLaboratoriesHospitalsLibraries, MedicalMexico Archival Collection: The Alan Gregg Papers (Profiles in Science)
23. Letter from Joshua Lederberg to Arthur S. LaPine & Co. Publication: Produced: 11 October 1954 Subject(s): Equipment and SuppliesLaboratories Archival Collection: The Joshua Lederberg Papers (Profiles in Science)