These interviews conducted under the sponsorship of the American Society of Hematology, seek to document the history of the development of the science of hematology and the history of the American Society of Hematology. They offer a fairly complete introduction to the development of blood science and blood science technology. Among the areas discussed are: the development of the techniques of transfusion, the development of blood plasma, the organization of hematology as a discipline, early leaders in the field, major institutions sponsoring research, the relationship between blood diseases and cancer, the relationship of hematology to other medical practices, and the establishment and leadership of the American Society of Hematology. Participants and pagination: C. Lockard Conley, 87; Joseph Ross, 229; James Tullis, 164.