31. Letter from Albert Siegel to Rosalind Franklin Publication: Produced: 26 October 1954 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
32. Letter from Albert Siegel to Rosalind Franklin Publication: Produced: 23 February 1955 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
33. Letter from F. C. Bawden to Aaron Klug Publication: Produced: 1 May 1958 Subject(s): Tobacco Mosaic VirusPotexvirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
34. Letter from F. C. Bawden to Rosalind Franklin Publication: Produced: 13 March 1957 Subject(s): Tobacco Mosaic Virus Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
35. Letter from F. C. Bawden to Rosalind Franklin Publication: Produced: 21 October 1957 Subject(s): Tobacco Mosaic Virus Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
36. Letter from F. C. Bawden to Rosalind Franklin Publication: Produced: 18 March 1958 Subject(s): Tobacco Mosaic VirusPotexvirus Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
37. Letter from Donald L. D. Caspar to Rosalind Franklin Publication: Produced: 1 November 1954 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
38. Letter from Donald L. D. Caspar to Rosalind Franklin Publication: Produced: 9 April 1955 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
39. Letter from Donald L. D. Caspar to Rosalind Franklin Publication: Produced: [ca. April-May 1955] Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
40. Letter from Donald L. D. Caspar to Rosalind Franklin Publication: Produced: [1956] Subject(s): Tobacco Mosaic VirusRNA Archival Collection: The Rosalind Franklin Papers (Profiles in Science)