1. Letter from Francis Crick to Douglas R. Tobin Creator: Crick, Francis, 1916-2004 Date: 27 November 1970 Genre: Letters (correspondence)
2. Letter from Jerry Donohue to Francis Crick Creator: Donohue, Jerry Date: 9 June 1970 Genre: Letters (correspondence)
3. Letter from Francis Crick to Jerry Donohue Creator: Crick, Francis, 1916-2004 Date: 20 May 1970 Genre: Letters (correspondence)
4. Letter from Jerry Donohue to Francis Crick Creator: Donohue, Jerry Date: 10 August 1970 Genre: Letters (correspondence)
5. Letter from Francis Crick to Jerry Donohue Creator: Crick, Francis, 1916-2004 Date: 3 August 1970 Genre: Letters (correspondence)
6. Letter from Francis Crick to Jerry Donohue Creator: Crick, Francis, 1916-2004 Date: [ca. 15 July 1970] Genre: Letters (correspondence)
7. Letter from Jerry Donohue to Francis Crick Creator: Donohue, Jerry Date: 6 May 1970 Genre: Letters (correspondence)
8. Letter from Francis Crick to John Desmond Bernal Creator: Crick, Francis, 1916-2004 Date: 20 January 1969 Genre: Letters (correspondence)
9. Letter from Aaron Klug to Francis Crick Creator: Klug, Aaron Date: 15 October 1976 Genre: Letters (correspondence)
10. Letter from Aaron Klug to Francis Crick Creator: Klug, Aaron Date: 28 September 1976 Genre: Letters (correspondence)
11. Letter from Aaron Klug to Francis Crick Creator: Klug, Aaron Date: 21 October 1976 Genre: Letters (correspondence)
12. Letter from Aaron Klug to Francis Crick Creator: Klug, Aaron Date: 12 October 1976 Genre: Letters (correspondence)