III. IMMUNOLOGY 
Alt, Frederick W., Ph.D., Investigator 355 
Columbia University College of Physicians and Surgeons 
Genetic Mechanisms Involved in the Generation of the Antibody Repertoire 
Atkinson, John P., M.D., /wi^esfi^fltor 359 
Washington University School of Medicine 
Complement System 
Bothwell, Alfred L. M., Ph.D., Associate Investigator 363 
Yale University School of Medicine 
Mechanism of Lymphocyte Differentiation 
Bottomly, Kim, Ph.D., Associate Investigator 365 
Yale University School of Medicine 
T Cell Heterogeneity 
ChapUn, David D., M.D., Ph.D., Associate Investigator 369 
Washington University School of Medicine 
Molecular Genetics of the HLA and Cytokine Systems 
Cook, Richard G., Ph.D., Associate Investigator 371 
Baylor College of Medicine 
Chemistry and Regulation of Expression of Major Histocompatibility Complex-encoded 
Class I Antigens 
Cooper, Max D., M.D., Investigator 375 
University of Alabama at Birmingham 
Development of the Immune System 
Davis, C. Geoffrey, Ph.D., Assistant Investigator 379 
University of California at San Francisco 
Trafficking of Major Histocompatibility Complex Class I Molecules 
Davis, Mark M., Ph.D., Associate Investigator 381 
Stanford University School of Medicine 
T Cell Recognition and Selection 
Fischer-Lindahl, Kirsten, Ph.D., Investigator 385 
University of Texas Southwestern Medical Center at Dallas 
Genetics, Structure, and Function of Histocompatibility Antigens 
Goetzl, Edward J., M.D., Investigator 387 
University of California at San Francisco 
Molecular Characteristics of the Effector Pathways of Immunological Responses 
Greene, Warner C, M.D., Ph.D., Investigator 391 
Duke University Medical Center 
Normal Human T Cell Growth and Pathogenic Human Retroviruses 
Grosschedl, Rudolf, PYi.D., Assistant Investigator 395 
University of California at San Francisco 
Developmental Control of Gene Expression 
Hardy, Kenneth J., M.D., ¥h.T>., Assistant Investigator 397 
Baylor College of Medicine 
Molecular Mechanisms of Cytokine Immunoregulation 
Continued 
345 
