1. Letter from Ray Wu to Daniel Nathans Publication: Produced: 11 December 1973 Subject(s): Simian virus 40DNA Fragmentation Archival Collection: The Daniel Nathans Papers (Profiles in Science)
2. Letter from Daniel Nathans to Ray Wu Publication: Produced: 20 December 1973 Subject(s): Simian virus 40DNA Fragmentation Archival Collection: The Daniel Nathans Papers (Profiles in Science)
3. A Colinear Map Relating the Simian Virus 40 (SV40) DNA Segments of Six Adenovirus-SV40 Hybrids to the DNA Fragments Produced by Restriction Endonuclease Cleavage of SV40 DNA Publication: National Academy of Sciences (U.S.), February 1974 Subject(s): Simian virus 40DNA Restriction EnzymesDNA CleavageDNA Fragmentation Archival Collection: The Daniel Nathans Papers (Profiles in Science)
4. Letter from Daniel Nathans to David C. Ward Publication: Produced: 24 June 1971 Subject(s): Simian virus 40DNA Fragmentation Archival Collection: The Daniel Nathans Papers (Profiles in Science)
5. Letter from David C. Ward to Daniel Nathans Publication: Produced: 2 August 1971 Subject(s): Simian virus 40DNA Fragmentation Archival Collection: The Daniel Nathans Papers (Profiles in Science)
6. Letter from Daniel Nathans to Ernest Winocour and Maxine Singer Publication: Produced: 11 July 1972 Subject(s): Simian virus 40DNA Fragmentation Archival Collection: The Daniel Nathans Papers (Profiles in Science)
