1. Letter from Thomas H. Jukes to Francis Crick Creator: Jukes, Thomas H. (Thomas Hughes), 1906-1999 Date: 20 December 1979 Genre: Letters (correspondence)
2. Letter from Thomas H. Jukes to Francis Crick Creator: Jukes, Thomas H. (Thomas Hughes), 1906-1999 Date: 16 May 1974 Genre: Letters (correspondence)
3. Letter from Eric I. Hamilton to Francis Crick Creator: Hamilton, Eric I. Date: 20 August 1973 Genre: Letters (correspondence)