1. Letter from A. D. Hershey to Michael Heidelberger Publication: Produced: [10 April 1941] Subject(s): Antigen-Antibody ReactionsBacteriophagesKinetics Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
2. Letter from A. D. Hershey to Michael Heidelberger Publication: Produced: 1 May 1941 Subject(s): Antigen-Antibody ReactionsBacteriophagesKinetics Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
3. Letter from A. D. Hershey to Michael Heidelberger Publication: Produced: 4 August 1942 Subject(s): Antigen-Antibody ReactionsBacteriophagesKinetics Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
4. A Comparison of the Kinetics of Enzymatic Adaptation in Genetically Homogeneous and Heterogeneous Populations of Yeast Publication: Missouri Botanical Garden Press, 1944 Subject(s): GeneticsYeastsKineticsEnzymes Archival Collection: The Sol Spiegelman Papers (Profiles in Science)
