Jacqueline F. Ackland(22),     Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208

Ede M. Apostolakis(12),     Division of Perinatal Biology, Loma Linda University School of Medicine, Loma Linda, California 92350

Georg Brabant(18),     Department of Klinische Endokrinologie, Medizinische Hochschule Hannover, 30625 Hannover, Germany

Alain Caraty(9),     Station de Physiologie de la Reproduction, Institut National de la Recherche Agronomique, Nouzilly 37380, France

Kevin J. Catt(4),     Endocrine and Reproductive Research Branch, National Institute of Child Health and Human Development, Bethesda, Maryland 20892

Adria A. Elskus(22),     Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208

William C. Engeland(13),     Department of Surgery, University of Minnesota, Minneapolis, Minnesota 55455

Gonzala Martinez de la Escalera(1),     Departmento de Fisiologia, Instituto de Investigaciones Biomedicas, Universidad Nacional Autonoma de Mexico, 04510 Mexico City DF, Mexico

Patricia C. Fallest(22),     Division of Endocrinology, University of Virginia Medical Center, Charlottesville, Virginia 22908

Lindsay M. Faunt(17),     Division of Endocrinology and Metabolism, Departments of Pharmacology and Internal Medicine, University of Virginia Health Sciences Center, National Science Foundation Center for Biological Timing, Charlottesville, Virginia 22908

Charles J. Goodner(11),     Division of Metabolism, Endocrinology, and Nutrition, University of Washington School of Medicine, Seattle, Washington 98195

Eve S. Hiatt(22),     Department of Obstetrics and Gynecology, Universiy of Louisville School of Medicine, Louisville, Kentucky 40292

Bertil Hille(5),     Department of Physiology and Biophysics, University of Washington, School of Medicine, Seattle, Washington 98195

Michael S. Jasper(13),     GI Unit, Massachusetts General Hospital, Boston, Massachusetts 02114

Michael L. Johnson(15, 17),,     Division of Endocrinology and Metabolism, Departments of Pharmacology and Internal Medicine, University of Virginia Health Sciences Center, National Science Foundation for Biological Timing, Charlottesville, Virginia 22908

Fred J. Karsch(9),     Reproductive Sciences Program, University of Michigan, Ann Arbor, Michigan 48109

Martin J. Kelly(3),     Department of Physiology, School of Medicine, Oregon Health Sciences University, Portland, Oregon 97201

Ernst Knobil(6),     Laboratory for Neuroendocrinology, University of Texas Houston Medical School, Houston, Texas 77225

Kerry L. Knox(22),     Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208

Lazar Z. Krsmanovic(4),     Endocrine and Reproductive Research Branch, National Institute of Child Health and Human Development, Bethesda, Maryland 20892

Pierre J. Lefèbvre(23),     Division of Diabetes, Nutrition, and Metabolic Disorders, C.H.U. Sart Tilman (B35), Department of Medicine, University of Liège, B-4000 Liège 1, Belgium

Jon E. Levine(8),     Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208

Alain Locatelli(9),     Station de Physiologie de la Reproduction, Institut National de la Recherche Agronomique, Nouzilly 37380, France

James Edward Alister McIntosh(20),     Department of Obstetrics and Gynecology, Wellington School of Medicine, University of Otago, Wellington 2, New Zealand

John M. Meredith(8),     Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208

George R. Merriam(16),     Division of Metabolism, Endocrinology, and Nutrition, Department of Medicine, and Department of Obstetrics and Gynecology, and Research Service (151), American Lake Veterans Administration Medical Center, University of Washington School of Medicine, Seattle, Washington 98195

Suzanne M. Moenter(9),     Reproductive Sciences Program, University of Michigan, Ann Arbor, Michigan 48109

John Moorman(15),     Departments of Internal Medicine and Pharmacology and, National Science Foundation Center for Biological Timing, University of Virginia Health Sciences Center, Charlottesville, Virginia 22908

Yuji Mori(7),     Department of Veterinary Ethology, Veterinary Medical Science, The University of Tokyo, Tokyo 113, Japan

Erik Mosekilde(19),     Physics Department, Technical University of Denmark, DK-2800 Lyngby, Denmark

Rosalind P. Murray-McIntosh(20),     Department of Medicine, Wellington School of Medicine, University of Otago, Wellington 2, New Zealand

Masugi Nishihara(7),     Department of Veterinary Physiology, Veterinary Medical Science, The University of Tokyo, Tokyo 113, Japan

Jeffrey R. Norgle(8),     Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208

Kevin T. O’Byrne(6),     Laboratory for Neuroendocrinology, University of Texas Houston Medical School, Houston, Texas 77225

Giuseppe Paolisso(23),     Istituto di Gerontologia e Geriatria, Università di Napoli, Naples, Italy

Tarja Porkka-Heiskanen(8),     Department of Physiology, University of Helsinki, Helsinki SF-00170, Finland

Klaus Prank(18),     Department of Klinische Endokrinologie, Medizinische Hochschule Hannover, 30625 Hannover, Germany

Oline K. Rønnekleiv(3),     Department of Physiology, School of Medicine, Oregon Health Sciences University, Portland, Oregon 97201

André J. Scheen(23),     Division of Diabetes, Nutrition and Metabolic Disorders, C.H.U. Sart Tilman (B35), Department of Medicine, University of Liège, B-4000 Liège 1, Belgium

Neena B. Schwartz(22),     Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208

Eugene Seneta(17),     School of Mathematics and Statistics, University of Sydney, Sydney, New South Wales 2006, Australia

Margaret A. Shupnik(21),     Departments of Internal Medicine and Physiology, University of Virginia Health Sciences Center, Charlottesville, Virginia 22908

Daniel J....