161. 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)
162. 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)
163. 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)
164. 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)
165. Letter from John Desmond Bernal to Monsieur Beaudouin Publication: Produced: 14 December 1956 Subject(s): Equipment and Supplies Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
166. Letter from L. H. Gray to Rosalind Franklin Publication: Produced: 25 February 1957 Subject(s): Tobacco Mosaic VirusCrystallography, X-Ray Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
167. Letter from L. H. Gray to Rosalind Franklin Publication: Produced: 20 March 1957 Subject(s): Tobacco Mosaic VirusCrystallography, X-Ray Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
168. Letter from H. Fraenkel-Conrat to Rosalind Franklin Publication: Produced: 10 May 1955 Subject(s): Tobacco Mosaic Virus Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
169. Letter from H. Fraenkel-Conrat to Rosalind Franklin Publication: Produced: 20 October 1955 Subject(s): Tobacco Mosaic Virus Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
170. Letter from H. Fraenkel-Conrat to Rosalind Franklin Publication: Produced: 14 March 1956 Subject(s): Tobacco Mosaic VirusX-Ray Diffraction Archival Collection: The Rosalind Franklin Papers (Profiles in Science)