1. Letter from Fritz Lipmann to Francis Crick Creator: Lipmann, Fritz (Fritz Albert), 1899-1986 Date: 27 November 1961 Genre: Letters (correspondence)
2. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 31 March 1965 Genre: Letters (correspondence)
3. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 5 April 1965 Genre: Letters (correspondence)
4. Letter from Francis Crick to James D. Watson and Marshall W. Nirenberg Creator: Crick, Francis, 1916-2004 Date: 29 April 1965 Genre: Letters (correspondence)
5. Letter from Andre Lwoff, Institut Pasteur (France) to Francis Crick Creator: Institut Pasteur (Paris, France)Lwoff, Andre, 1902- Date: 13 September 1957 Genre: Letters (correspondence)
6. Letter from Francis Crick to Andre Lwoff, Institut Pasteur (France) Creator: Crick, Francis, 1916-2004 Date: 25 September 1957 Genre: Letters (correspondence)
7. Letter from Igor Y. Tamm to Francis Crick Creator: Tamm, Igor Y. Date: 9 November 1962 Genre: Letters (correspondence)
8. Letter from Francis Crick to Marshall W. Nirenberg Creator: Crick, Francis, 1916-2004 Date: 21 April 1966 Genre: Letters (correspondence)
9. Letter from Marshall W. Nirenberg to Francis Crick Creator: Nirenberg, Marshall W. Date: 7 May 1966 Genre: Letters (correspondence)
10. Letter from Francis Crick to Marshall W. Nirenberg Creator: Crick, Francis, 1916-2004 Date: 10 May 1966 Genre: Letters (correspondence)