Correspondence of Dr. George M. Mackenzie with friends and associates of Karl Landsteiner; memoranda of conversations; notes and recollections of Landsteiner by Thomas M. Rivers, 1944-1952, and by Max Neuberger; Landsteiner's departmental reports at Rockefeller Institute, 1923-1943; correspondence on publications. There is much material on immunology, the study of blood, the Nobel award, 1930, antisemitism, and the Vienna medical schools.

A pathologist and researcher at the Rockefeller Institute of Medical Research, 1914-1922, Harold Lindsay Amoss (1886-1956) specialized in research on infectious diseases ranging from poliomyelitis to meningitis, erysipelas, brucellosis, and encephalitis. The Amoss Papers are comprised primarily of materials relating to Harold Amoss' medical service in the United States Army during the First World War (1918-1919), to his research at the Rockefeller Institute of Medical Research, 1920-1922, and to his efforts to develop vaccines for meningitis and poliomyelitis.

This collection contains correspondence and reports and documents Florence Seibert's work at Yale University, under Lafayette Benedict Mendel; at the University of Chicago, under H. Gideon Wells; and at the Henry Phipps Institute at the University of Pennsylvania, 1932-1959. There are cancer research folders concerning her later work at the Mound Park Hospital Foundation and the Bay Pines V. A. Center, in St. Petersburg, Florida. There are also substancial amounts on Goucher College (her alma mater); Lilly Research Laboratories; Merck, Sharpe & Dohme; and Parke, Davis & Company.

Simon Flexner, born in 1863, one of the nation's leading experts in pathology and bacteriology, was most renowned for his research on cerebrospinal meningitis, polio and infantile paralysis. Arguably though, Flexner's stewardship of the Rockefeller Institute was his greatest contribution to medical and scientific research. His rise in the medical community began in the late nineteenth century in Louisville, Kentucky, where despite not having completed even the seventh grade, Flexner taught himself basic bacteriology by conducting experiments at home using a microscope borrowed from the pharmacy where he served as an apprentice. Granted a medical degree from the University of Louisville School of Medicine in 1889, he went on to a pathology fellowship at the newly opened John Hopkins School of Medicine. Within two short years of leaving Louisville, Flexner received an assistant of pathology appointment at Johns Hopkins. It was a quick ascent and the beginning of a long and brilliant career that included a prestigious appointment at the University of Pennsylvania and then a directorship at the new Rockefeller Institute where he realized his lifelong dream of creating a dynamic and productive research laboratory. The Rockefeller Institute became instantly famous worldwide as the preeminent research facility for virology and under Flexner's direction produced invaluable contributions in pathology, bacteriology, and immunology. This collection does not reflect the early phases of Flexner's career at Johns Hopkins but does document an early interest in meningitis and other infectious diseases with science-related correspondence, laboratory notebooks, and administrative correspondence with the New York City and State Departments of Health. There is abundant material on Flexner's directorship of the Rockefeller Institute for Medical Research, including Flexner's search for staff, an involved process which is detailed in correspondence with the scientists, many of whom became quite famous. Also included is material relating to the other institutions and Rockefeller philanthropies with which Flexner was involved. (Among the most significant correspondence, however, may be that which documents the support of the General Education Board and the Rockefeller Foundation in the development and subsequent reorganization of medical schools following brother Abraham Flexner's scathing report on medical education in the United States and Canada). This collection would be of great interest to anyone interested in the history of bacteriology, histology, and immunology or the general history of modern medicine and philanthropy.

A pathologist and cancer specialist, James B. Murphy (1884-1950) spent most of career associated with the Rockefeller Institute (1911-1950) investigating the role of lymphocytes in tuberculosis, x-ray mutagenesis, and the nature of malignant tumors in fowls. The Murphy Papers contains professional correspondence and research notes relating to James B. Murphy's cancer research at the Rockefeller, and information on several of the organizations to which he contributed or belonged, including the American Association for Cancer Research; American Bureau for Medical Aid to China; American Cancer Society; Bar Harbor Medical and Surgical Hospital; Roscoe B. Jackson Memorial Laboratory; Memorial Hospital for the Treatment of Cancer (New York City, ca. 1932-1950); National Advisory Cancer Council; and the New York Academy of Medicine (1923-1950). Murphy helped to develop mobile laboratories for hospitals in France during World War I.