21. Letter from Einar Leifson to Joshua Lederberg Publication: Produced: 3 June 1955 Subject(s): Cell Culture TechniquesFlagellaGenetics, Microbial Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
22. Letter from Joshua Lederberg to Einar Leifson Publication: Produced: 7 June 1955 Subject(s): Cell Culture TechniquesFlagellaGenetics, Microbial Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
23. Letter from Einar Leifson to Joshua Lederberg Publication: Produced: 16 August 1955 Subject(s): Cell Culture TechniquesFlagellaBacteria Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
24. Letter from Einar Leifson to Joshua Lederberg Publication: Produced: 16 August 1955 Subject(s): BacteriaCell Culture TechniquesFlagella Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
25. Letter from Joshua Lederberg to Einar Leifson Publication: Produced: 8 September 1955 Subject(s): Cell Culture TechniquesResearch Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
26. Letter from Joshua Lederberg to Einar Leifson Publication: Produced: 11 September 1955 Subject(s): Cell Culture TechniquesFlagellaResearch Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
27. Letter from Joshua Lederberg to Edwin S. Lennox Publication: Produced: 6 August 1956 Subject(s): Cell Culture Techniques Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
28. Letter from Robert Paul Levine to Joshua Lederberg Publication: Produced: 1 October 1956 Subject(s): Cell Culture Techniques Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
29. Letter from Joshua Lederberg to Kaare Lilleengen Publication: Produced: 6 February 1950 Subject(s): Cell Culture Techniques Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
30. Telegram from the Swedish Consulate General to Joshua Lederberg Publication: Produced: 4 February 1950 Subject(s): Cell Culture Techniques Archival Collection: The Joshua Lederberg Papers (Profiles in Science)