1. Symposium Celebrating the Thirty-Fifth Anniversary of the Publication of 'Studies on the Chemical Nature of the Substance Inducing Transformation of Pneumococcal Types' Publication: Produced: 2 February 1979 Subject(s): DNABacterial Typing TechniquesHistory of MedicineTransformation, GeneticResearch Archival Collection: The Oswald T. Avery Collection (Profiles in Science)