B-Cell Differentiation, Subpopulations, the Role of Germinal Centers.- Prospects for Understanding the Role of Lymphoid Microenvironments in B Cell Differentiation in Vivo.- Pre-B Cells in Rat Bone Marrow: Identification, Surface Markers and Isolation.- T Cell Markers on Pre-B cells in the Rat.- Ig Light Chain Gene Rearrangement and Chromosomal Abnormality in the LAMA Early B-Lineage Tumour of the Rat.- In Vivo Regulation of B Lymphocyte Production in the Bone Marrow: Effects and Mechanism of Action of Exogenous Stimuli on Pre-B Cell Proliferation and Lymphocyte Turnover.- Influence of the Xid Mutation on B Lymphocyte Development in Adult Mice.- In Vitro Growth and Differentiation of Rat B Cell Subpopulations.- B Cell Production in Adult Rats.- The Paradox of High Rates of B Cell Production in Bone Marrow and the Longevity of Most Mature B cells.- Monoclonal Antibodies to Rat B Lymphocyte (Sub-)Populations.- Effect of Early Embryonic Bursectomy on Lymphocyte Differentiation and Maturation.- Evidence for the Existence of Two Distinct Types of Peyers Patches in Sheep.- Evidence of Differences Between Peyers Patches and Germinal Centers.- Differentiation of B Lymphocytes in Sheep. II. Surface Phenotype of B Cells leaving the Bursa-Equivalent Lymphoid Tissue of Sheep, Ileal Peyers Patches.- Origin and Fate of IgE-Bearing Lymphocytes: Modulation of IgE Isotype Expression on Peyers Patch Cells.- Immunoglobulin Isotypes and Antibody Specificity Repertoire of Spontaneously Occurring Ig-Secreting Cells in Germfree Mice Fed Chemically Defined UltraFiltered, Antigen-Free Diet.- Comparative Analysis of the Development of B Cells in Marginal Zones and Follicles.- Germinal Center Cells: Antigen Specificity, Heavy Chain Class Expression and Evidence of Memory.- The Development of Specific Antibody Producing Cells in the Spleen of Rabbits During the Primary and Secondary Immune Response.- The Ontogenetic Development of the Follicular Dendritic Cell in Rat Spleen.- Origin anlSx