11. Letter from Thomas B. Turner to Daniel Nathans Creator: Turner, Thomas B.Johns Hopkins University. School of Medicine Date: 10 March 1981 Genre: Letters (correspondence)
12. Letter from Daniel Nathans to William F. Harrington Creator: Nathans, Daniel, 1928-1999 Date: 7 August 1980 Genre: Letters (correspondence)
13. Letter from Daniel Nathans to I. Arita Creator: Nathans, Daniel, 1928-1999 Date: 7 February 1979 Genre: Letters (correspondence)
14. Letter from Oliver H. Lowry to Daniel Nathans Creator: Lowry, Oliver H.Washington University (Saint-Louis, Mo.). School of Medicine Date: 20 December 1978 Genre: Letters (correspondence)
15. Letter from Daniel Nathans to Paul Berg Creator: Nathans, Daniel, 1928-1999 Date: 14 February 1978 Genre: Letters (correspondence)
16. Letter from Paul Berg to Daniel Nathans Creator: Berg, PaulStanford University. Medical Center Date: 6 February 1978 Genre: Letters (correspondence)
17. Draft of letter on recombinant DNA legislation (with edits by Daniel Nathans) Creator: Berg, Paul Date: [February 1978] Genre: Letters (correspondence)Drafts (documents)
18. Letter from Paul Berg to Daniel Nathans Creator: Berg, PaulStanford University. Medical Center Date: 13 September 1977 Genre: Letters (correspondence)
19. Draft of letter on recombinant DNA legislation (with edits by Daniel Nathans) Creator: Berg, Paul Date: [September 1977] Genre: Letters (correspondence)Drafts (documents)
20. Letter from U.S. Representative Ray Thornton to Daniel Nathans Creator: United States House of Representatives. Committee on Science and TechnologyThornton, Ray Date: 18 March 1977 Genre: Letters (correspondence)