1. Letter from Daniel Nathans to Kathleen J. Danna Publication: Produced: 22 February 1973 Subject(s): Haemophilus influenzae Archival Collection: The Daniel Nathans Papers (Profiles in Science)
2. Letter from Ernest Winocour and Maxine Singer to Daniel Nathans Publication: Produced: 4 July 1972 Subject(s): Haemophilus influenzae Archival Collection: The Daniel Nathans Papers (Profiles in Science)
3. Letter from Maxine Singer to Daniel Nathans Publication: Produced: 14 March 1972 Subject(s): Haemophilus influenzaeCloning, Molecular Archival Collection: The Daniel Nathans Papers (Profiles in Science)
4. Letter from Daniel Nathans to Maxine Singer Publication: Produced: 1 March 1972 Subject(s): Haemophilus influenzaeDNA Fragmentation Archival Collection: The Daniel Nathans Papers (Profiles in Science)
5. Letter from Daniel Nathans to Ernest Winocour Publication: Produced: 1 December 1971 Subject(s): Haemophilus influenzae Archival Collection: The Daniel Nathans Papers (Profiles in Science)
6. Letter from Ernest Winocour to Daniel Nathans Publication: Produced: 4 November 1971 Subject(s): Haemophilus influenzaeSimian virus 40 Archival Collection: The Daniel Nathans Papers (Profiles in Science)