1. Letter from Francis Crick to Rosalind Franklin Publication: Produced: 3 June 1955 Subject(s): Tobacco Mosaic VirusRNAPotexvirus Archival Collection: The Rosalind Franklin Papers (Profiles in Science)
2. Letter from Rosalind Franklin to Francis Crick Publication: Produced: 6 June 1955 Subject(s): Tobacco Mosaic VirusPotexvirus Archival Collection: The Rosalind Franklin Papers (Profiles in Science)