I Studies of Hemopoietic Stem Cells.- 1 Alterations Induced in Murine Hemopoietic Stem Cells Following a Single Injection of Corynebacterium parvum.- Materials and Methods.- Results.- Discussion.- Summary.- References.- 2 Growth Control of Hemopoietic Colony-Forming Cells by Thymidine and Deoxycytidine.- Materials and Methods.- Results.- Discussion.- Summary.- Acknowledgments.- References.- 3 Identification of CFU-s by Scatter Measurements on a Light Activated Cell Sorter.- Materials and Methods.- Results.- Discussion.- Summary.- Acknowledgments.- References.- 4 Are Stem Cells Regulated by Late Erythroid Precursors?.- Methods.- Results.- Discussion.- Summary.- Acknowledgments.- References.- 5 Ly Phenotype and Other T-Cell Antisera Sensitivity of an Anti-Theta Sensitive Cell that Regulates Hematopoiesis.- Materials and Methods.- Results.- Discussion.- Summary.- Acknowledgments.- References.- II Myelopoiesis.- 6 The Heterogeneity of Macrophage- Granulocyte Precursor Cell Populations.- Summary.- References.- 7 Local Control of Mast Cell Differentiation in Mice.- Materials and Methods.- Results.- Discussion.- Summary.- Acknowledgments.- References.- 8 The Effect of Anti-i on Early Myeloid Progenitor Cells in Human Bone Marrow.- Materials and Methods.- Results.- Discussion.- Summary.- Acknowledgments.- References.- 9 Hematologic Contributions to Increases in Resistance or Sensitivity to Endotoxin.- Summary.- References.- 10 Suppression of Erythroid Differentiation by Colony-Stimulating Factor.- Materials and Methods.- Results.- Discussion.- Summary.- Acknowledgments.- References.- III Erythropoiesis and Megakaryocytopoiesis.- 11 Progress in Erythropoiesis and Megakaryocytopoiesis.- Summary.- References.- 12 High Burst-Promoting Activity (BPA) in Serum of Patients with Acquired Aplastic Anemia.- Materials and Methods.- Discussion.- Summary.- Acknowledgments.- References.- 13 An in Vitro System for Erythroid Transformation by Friend Leukemia Virus.- Methods and Materials.-lĂr