501. Letter from J. T. Randall to Rosalind Franklin Publication: Produced: 4 December 1950 Subject(s): DNAX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
502. Letter from Barry Commoner to Rosalind Franklin Publication: Produced: 11 April 1955 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
503. Letter from Rosalind Franklin to H. Fraenkel-Conrat Publication: Produced: 21 February 1956 Subject(s): Tobacco Mosaic VirusRNAX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
504. Letter from Rosalind Franklin to H. Fraenkel-Conrat Publication: Produced: 20 April 1956 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
505. Letter from Rosalind Franklin to C. A. Knight Publication: Produced: 15 November 1954 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
506. Letter from Rosalind Franklin to C. A. Knight Publication: Produced: 17 December 1954 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
507. Letter from Rosalind Franklin to C. A. Knight Publication: Produced: 22 December 1954 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
508. Letter from Rosalind Franklin to Robley Williams Publication: Produced: 14 February 1955 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
509. Letter from Rosalind Franklin to Robley Williams Publication: Produced: 12 July 1955 Subject(s): Tobacco Mosaic VirusRNAX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
510. Letter from Rosalind Franklin to Robley Williams Publication: Produced: 14 September 1955 Subject(s): Tobacco Mosaic VirusRNAX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)