1. Letter from Michael Heidelberger to William C. Boyd, Boston University Publication: Produced: 16 December 1940 Subject(s): PrecipitinsAgglutinationAntigen-Antibody ReactionsAllergy and Immunology Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
2. Letter from Michael Heidelberger to F. M. Burnet, Walter & Eliza Hall Institute of Medical Research Publication: Produced: 15 October 1941 Subject(s): Allergy and ImmunologyVirology Archival Collection: The Michael Heidelberger Papers (Profiles in Science)