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 Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 5 March 1958 Genre: Letters (correspondence)
6. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 27 May 1960 Genre: Letters (correspondence)
7. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 12 April 1958 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 John Burton Sanderson Haldane to Francis Crick Creator: Haldane, J. B. S. (John Burdon Sanderson), 1892-1964 Date: 6 May 1959 Genre: Letters (correspondence)
10. Letter from Warren Weaver to Francis Crick Creator: Weaver, Warren, 1894-1978 Date: 16 June 1964 Genre: Letters (correspondence)