1. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 13 April 1967 Genre: Letters (correspondence)
2. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 24 March 1967 Genre: Letters (correspondence)
3. Letter from Paul Doty to Francis Crick Creator: Doty, Paul M., 1920-2011 Date: 16 March 1967 Genre: Letters (correspondence)
4. Letter from John T. Edsall to Francis Crick Creator: Edsall, John T. Date: 14 March 1967 Genre: Letters (correspondence)
5. Letter from Francis Crick to Lawrence Bragg Creator: Crick, Francis, 1916-2004 Date: 23 February 1967 Genre: Letters (correspondence)
6. Letter from Francis Crick to Maurice Wilkins Creator: Crick, Francis, 1916-2004 Date: 19 January 1967 Genre: Letters (correspondence)
7. Letter from Nathan M. Pusey, Harvard University to Francis Crick Creator: Pusey, Nathan M.Harvard University Date: 9 December 1966 Genre: Letters (correspondence)
8. Letter from Francis Crick to Nathan M. Pusey, Harvard University Creator: Crick, Francis, 1916-2004 Date: 23 December 1966 Genre: Letters (correspondence)
9. Letter from Nathan M. Pusey, Harvard University to Francis Crick Creator: Pusey, Nathan M.Harvard University Date: 13 January 1967 Genre: Letters (correspondence)
10. Letter from James D. Watson to Maurice Wilkins Creator: Watson, James D., 1928- Date: 28 November 1966 Genre: Letters (correspondence)
11. Letter from Francis Crick to Nathan M. Pusey, Harvard University Creator: Crick, Francis, 1916-2004 Date: 1 December 1966 Genre: Letters (correspondence)
12. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 1 November 1966 Genre: Letters (correspondence)
13. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 23 November 1966 Genre: Letters (correspondence)
14. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 10 October 1966 Genre: Letters (correspondence)
15. Letter from Maurice H. F. Wilkins to James D. Watson Creator: Wilkins, Maurice, 1916-2004 Date: 6 October 1966 Genre: Letters (correspondence)
16. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 19 October 1966 Genre: Letters (correspondence)
17. Letter from Francis Crick to Thomas J. Wilson, Harvard University Press Creator: Crick, Francis, 1916-2004 Date: 21 October 1966 Genre: Letters (correspondence)
18. 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
19. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 10 May 1966 Genre: Letters (correspondence)
20. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 17 March 1966 Genre: Letters (correspondence)