1. Letter from Harriett Ephrussi-Taylor to Oswald T. Avery Publication: Produced: 20 October 1948 Subject(s): History of MedicineTransformation, GeneticResearch Archival Collection: The Oswald T. Avery Collection (Profiles in Science)
2. Letter from Otto Westphal to Joshua Lederberg Publication: Produced: 18 November 1947 Subject(s): Transformation, GeneticHistory of Medicine Archival Collection: The Oswald T. Avery Collection (Profiles in Science)