1. Letter from Thomas H. Jukes to Francis Crick Creator: Jukes, Thomas H. (Thomas Hughes), 1906-1999 Date: 12 January 1982 Genre: Letters (correspondence)
3. Letter from Francis Crick to Eric I. Hamilton Creator: Crick, Francis, 1916-2004 Date: 6 September 1973 Genre: Letters (correspondence)
4. Letter from Eric I. Hamilton to Francis Crick Creator: Hamilton, Eric I. Date: 20 August 1973 Genre: Letters (correspondence)