1. Letter from Eric I. Hamilton to Francis Crick Publication: Produced: 20 August 1973 Subject(s): Organelle BiogenesisGenetic CodeBiological Evolution Archival Collection: The Francis Crick Papers (Profiles in Science)
2. Letter from Thomas H. Jukes to Francis Crick Publication: Produced: 16 May 1974 Subject(s): Genetic CodeBiological Evolution Archival Collection: The Francis Crick Papers (Profiles in Science)
3. Letter from Thomas H. Jukes to Francis Crick Publication: Produced: 20 December 1979 Subject(s): Genetic CodeBiological Evolution Archival Collection: The Francis Crick Papers (Profiles in Science)