1. Letter from Daniel Nathans to Paul Berg Publication: Produced: 14 February 1978 Subject(s): DNA, RecombinantGuidelines as TopicLegislation as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
2. Letter from Paul Berg to Daniel Nathans Publication: Produced: 6 February 1978 Subject(s): DNA, RecombinantGuidelines as TopicLegislation as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
3. Draft of letter on recombinant DNA legislation (with edits by Daniel Nathans) Publication: Produced: [February 1978] Subject(s): DNA, RecombinantLegislation as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
4. Letter from Paul Berg to Daniel Nathans Publication: Produced: 13 September 1977 Subject(s): DNA, RecombinantLegislation as TopicGuidelines as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
5. Draft of letter on recombinant DNA legislation (with edits by Daniel Nathans) Publication: Produced: [September 1977] Subject(s): DNA, RecombinantLegislation as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
6. Letter from Paul Berg to U.S. Senator Harrison Schmitt Publication: Produced: 5 January 1979 Subject(s): DNA, RecombinantLegislation as Topic Archival Collection: The Maxine Singer Papers (Profiles in Science)