1. Letter from Thomas H. Jukes to Francis Crick Creator: Jukes, Thomas H. (Thomas Hughes), 1906-1999 Date: 16 May 1974 Genre: Letters (correspondence)
2. Letter from Fritz Lipmann to Francis and Odile Crick Creator: Lipmann, Fritz (Fritz Albert), 1899-1986 Date: 16 June 1976 Genre: Letters (correspondence)
3. Letter from Francis and Odile Crick to Fritz Lipmann Creator: Crick, OdileCrick, Francis, 1916-2004 Date: 25 June 1976 Genre: Letters (correspondence)
4. Letter from Eric I. Hamilton to Francis Crick Creator: Hamilton, Eric I. Date: 20 August 1973 Genre: Letters (correspondence)