1. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 16 July 1975 Genre: Letters (correspondence)
2. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 1 July 1975 Genre: Letters (correspondence)
3. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 4 June 1974 Genre: Letters (correspondence)
4. Letter from C. H. Waddington to Francis Crick Creator: Waggington, C. H. (Conrad Hal), 1905-1975 Date: 27 December 1967 Genre: Letters (correspondence)
5. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 17 March 1966 Genre: Letters (correspondence)
6. Letter from Francis Crick to C. H. Waddington Creator: Crick, Francis, 1916-2004 Date: 9 November 1967 Genre: Letters (correspondence)
7. Letter from Francis Crick to John A. B. Gray, Medical Research Council of Great Britain Creator: Crick, Francis, 1916-2004 Date: 5 November 1968 Genre: Letters (correspondence)
8. Letter from Francis Crick to Howard M. Temin Creator: Crick, Francis, 1916-2004 Date: 17 September 1970 Genre: Letters (correspondence)
9. Letter from Francis Crick to Warren Weaver Creator: Crick, Francis, 1916-2004 Date: 16 May 1967 Genre: Letters (correspondence)
10. Letter from Francis Crick to Thomas H. Jukes Creator: Crick, Francis, 1916-2004 Date: 20 May 1974 Genre: Letters (correspondence)
11. Letter from Francis Crick to W. Traub Creator: Crick, Francis, 1916-2004 Date: 2 January 1970 Genre: Letters (correspondence)
12. Letter from Francis Crick to Douglas R. Tobin Creator: Crick, Francis, 1916-2004 Date: 27 November 1970 Genre: Letters (correspondence)
13. Letter from Francis Crick to Howard M. Temin Creator: Crick, Francis, 1916-2004 Date: 3 August 1970 Genre: Letters (correspondence)
14. Letter from H. Gobind Khorana to Francis Crick Creator: Khorana, Har Gobind, 1922-2011 Date: 22 May 1974 Genre: Letters (correspondence)Diagrams
15. Letter from Thomas H. Jukes to Francis Crick Creator: Jukes, Thomas H. (Thomas Hughes), 1906-1999 Date: 16 May 1974 Genre: Letters (correspondence)
16. Letter from Eric I. Hamilton to Francis Crick Creator: Hamilton, Eric I. Date: 20 August 1973 Genre: Letters (correspondence)
17. Letter from Francis Crick to Eric I. Hamilton Creator: Crick, Francis, 1916-2004 Date: 6 September 1973 Genre: Letters (correspondence)
18. Letter from Francis Crick to H. Gobind Khorana Creator: Crick, Francis, 1916-2004 Date: 28 June 1974 Genre: Letters (correspondence)
19. Letter from Lord Charles Percy Snow to Francis Crick Creator: Snow, Charles Percy, Lord Date: 10 April 1969 Genre: Letters (correspondence)
20. Letter from Ernst Mayr to Francis Crick Creator: Mayr, Ernst, 1904-2005 Date: 14 April 1971 Genre: Letters (correspondence)