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. 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)
4. Letter from Daniel Nathans to Wallace P. Rowe Publication: Produced: 1 December 1975 Subject(s): DNA, RecombinantGuidelines as TopicNational Institutes of Health (U.S.) Archival Collection: The Daniel Nathans Papers (Profiles in Science)
5. Letter from Daniel Nathans to Aaron J. Shatkin Publication: Produced: 23 January 1975 Subject(s): DNA, RecombinantGuidelines as TopicHazardous Substances Archival Collection: The Daniel Nathans Papers (Profiles in Science)
6. Letter from Daniel Nathans to Paul Berg Publication: Produced: 23 July 1973 Subject(s): Guidelines as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
7. Letter from Paul Berg to Daniel Nathans Publication: Produced: 11 June 1973 Subject(s): Guidelines as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
8. Letter from Maurice R. Hilleman to Paul Berg Publication: Produced: 10 July 1973 Subject(s): Guidelines as Topic Archival Collection: The Daniel Nathans Papers (Profiles in Science)
9. Open Letter to the Asilomar Conference on Hazards of Recombinant DNA Publication: Produced: [February 1975] Subject(s): DNA, RecombinantCongresses as TopicHazardous SubstancesGuidelines as Topic Archival Collection: The Maxine Singer Papers (Profiles in Science)
10. Letter from Maxine Singer to Wallace P. Rowe Publication: Produced: 24 August 1976 Subject(s): DNA, RecombinantGuidelines as Topic Archival Collection: The Maxine Singer Papers (Profiles in Science)
