1. Letter from Frederick de Hoffman, Salk Institute for Biological Studies to Charles S. Smith, System Development Foundation Creator: Salk Institute for Biological Studiesde Hoffman, Frederick Date: 15 January 1982 Genre: Letters (correspondence)Drafts (documents)Grant proposals
2. Letter from Francis Crick to Max Delbruck Creator: Crick, Francis, 1916-2004 Date: [ca. 1953-1954] Genre: Letters (correspondence)Drafts (documents)
3. Letter from Francis Crick to James D. Watson Creator: Crick, Francis, 1916-2004 Date: 10 March 1966 Genre: Letters (correspondence)Drafts (documents)
4. Letter from Francis Crick to Aaron Klug Creator: Crick, Francis, 1916-2004 Date: 2 November 1976 Genre: Letters (correspondence)Drafts (documents)