11. Immunological Relationships of Cell Constituents of Pneumococcus: Second Paper Publication: Rockefeller Institute for Medical Research, August 1925 Subject(s): Pneumococcal InfectionsStreptococcus pneumoniae Archival Collection: The Michael Heidelberger Papers (Profiles in Science)
12. The Soluble Specific Substance of Pneumococcus: Third Paper Publication: Rockefeller Institute for Medical Research, October 1925 Subject(s): Streptococcus pneumoniaePneumococcal Infections Archival Collection: The Michael Heidelberger Papers (Profiles in Science)