1. Letter from Francis Crick to Andrew Poggenpohl, National Geographic Magazine Creator: Crick, Francis, 1916-2004 Date: 19 August 1974 Genre: Letters (correspondence)
2. Letter from Francis Crick to Charlotte Friend Creator: Crick, Francis, 1916-2004 Date: 18 September 1979 Genre: Letters (correspondence)
3. Letter from Francis Crick to David Harker Creator: Crick, Francis, 1916-2004 Date: 21 January 1953 Genre: Letters (correspondence)
4. Letter from Francis Crick to Harold Himsworth, Medical Research Council of Great Britain Creator: Crick, Francis, 1916-2004 Date: 15 June 1953 Genre: Letters (correspondence)
5. Letter from Francis Crick to Igor Y. Tamm Creator: Crick, Francis, 1916-2004 Date: 5 December 1962 Genre: Letters (correspondence)
6. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 10 March 1966 Genre: Letters (correspondence)Drafts (documents)
7. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 27 September 1966 Genre: Letters (correspondence)
8. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 13 April 1967 Genre: Letters (correspondence)
9. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 1 November 1966 Genre: Letters (correspondence)
10. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 10 October 1966 Genre: Letters (correspondence)
11. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 30 October 1962 Genre: Letters (correspondence)
12. Letter from Francis Crick to James D. Watson (and notes concerning Watson's book, "The Double Helix") Creator: Crick, Francis, 1916-2004 Date: 31 March 1966 Genre: Letters (correspondence)Notes
13. Letter from Francis Crick to Lawrence Bragg Creator: Crick, Francis, 1916-2004 Date: 23 February 1967 Genre: Letters (correspondence)
14. Letter from Francis Crick to Maurice Wilkins Creator: Crick, Francis, 1916-2004 Date: 19 January 1967 Genre: Letters (correspondence)
15. Letter from Francis Crick to Maurice Wilkins Creator: Crick, Francis, 1916-2004 Date: 30 October 1962 Genre: Letters (correspondence)
16. Letter from Francis Crick to Nathan M. Pusey, Harvard University Creator: Crick, Francis, 1916-2004 Date: 23 December 1966 Genre: Letters (correspondence)
17. Letter from Francis Crick to Nathan M. Pusey, Harvard University Creator: Crick, Francis, 1916-2004 Date: 1 December 1966 Genre: Letters (correspondence)
18. Letter from Francis Crick to Rosalind Franklin (and notes on two papers by Franklin and Raymond Gosling) Creator: Crick, Francis, 1916-2004 Date: 5 June 1953 Genre: Letters (correspondence)Notes
19. Letter from Francis Crick to Thomas J. Wilson, Harvard University Press Creator: Crick, Francis, 1916-2004 Date: 21 October 1966 Genre: Letters (correspondence)
20. Letter from Francis Crick to the Editor of The Sciences Creator: Crick, Francis, 1916-2004 Date: 2 October 1979 Genre: Letters (correspondence)