Phylogeny of Lymphocytes.- Immunoglobulin Genes and B Cell Development in Amphibians.- Evolutionary Development of Immunoglobulin Gene Diversity.- Studies on the Ontogeny of the Immune Function in Birds.- Developmental Biology of T Lymphocytes.- Kinetics of Negative and Positive Selection in the Thymus.- Life and Death of a T Cell.- First Wave Fetal Thymocytes Expressing V3j?1?1C?l-V?1J?2C? T Cell Receptors Are Not Required for ?? T Cell Receptor Rearrangement and Expression.- Diversity, Development, Ligands, and Probable Functions of ?? T Cells.- ?? T Cells in Murine Epithelia: Origin, Repertoire, and Function.- Acquisition of Mature Functional Responsiveness in T Cells: Programming for Function via Signaling.- Molecular Analysis of the Interaction of p56lck with the CD4 and CD8 Antigens.- Characterization of Triple Negative Clones Isolated from Post-Natal Human Thymus.- Monoclonal Antibodies Against T Cell Receptor/CD3 Complex Induce Cell Death of Thl Clones in the Absence of Accessory Cells.- Identification of a Novel Thymocyte Growth Factor Derived from B Cell Lymphomas.- Expression of Receptors for Interleukin 4 and Interleukin 7 on Human T Cells.- Effects of Leukemia Inhibitory Factor (LIF) on Gene Transfer Efficiency into Murine Hematolymphoid Progenitors.- Mechanism of Tolerance Inductions.- Thymic Mechanisms for Inducing Tolerance to Mls.- Cells Inducing Tolerance to Mls and H-2 Antigens.- Multiple Mechanisms of T cell Tolerance to Mls-la.- Induction and Maintenance of Anergy in Mature T Cells.- Developmental Biology Of B Lymphocytes.- Cloning and Characterization of a Protein Binding to the Jk Recombination Signal Sequence of Immunoglobulin Genes.- In Situ Detection of Stage-Specific Genes and Enhancers in B Cell Differentiation via Gene-SearchRetroviruses.- B Cell Development in Fetal Liver.- Identification of Components of the B Cell Antigen Receptor Complex.- Differences in Human B Cell Differentiation.- Stromal Cell Lines which Support Lymphocyte Growth. II. Characteristics of a Suppressive Subclone.- Developmental Biology Of Immunoglobulins.- Restricted Utilization of Germ-Line VH Genes in Rabbits: Implications for Inheritance of VH Allotypes and Generation of Antibody Diversity.- Control of Immunoglobulin Heavy Chain Constant Region Gene Expression.