1. Letter from Michael Heidelberger to Walter W. Palmer, Public Health Research Institute Publication: Produced: 24 September 1947 Subject(s): OxyhemoglobinsImmunochemistry Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
2. Letter from Michael Heidelberger to E. J. Crane, Chemical Abstracts Publication: Produced: 18 December 1939 Subject(s): ImmunochemistryAbstracting and Indexing as Topic Archival Collection: The Michael Heidelberger Papers (Profiles in Science)