Contributors and Discussants 
Walter Auffenberg, Ph.D. 
Florida State Museum 
University of Florida 
Gainesville, Florida 32621 
Medical Sciences Campus 
University of Puerto Rico 
GPO Box 5067 
San Juan, Puerto Rico 00936 
Bayard H. Brattstrom, Ph.D. 
Department of Biology 
California State University 
Fullerton, California 92634 
Gary W. Ferguson, Ph.D. 
Department of Biology 
Texas Christian University 
Fort Worth, Texas 76129 
Ann B. Butler, Ph.D. 
Department of Anatomy 
Georgetown University 
3900 Reservoir Road, N.W. 
Washington, D.C. 20007 
Charles C. Carpenter, Ph.D. 
Department of Zoology 
University of Oklahoma 
Norman, Oklahoma 73069 
David Crews, Ph.D. 
Museum of Comparative Zoology 
Harvard University 
Cambridge, Mass. 02138 
Judith A.F. Cruce, Ph.D. 
Department of Anatomy 
Northeastern Ohio Universities 
College of Medicine 
Rootstown, Ohio 44272 
William L.R. Cruce, Ph.D. 
Department of Neurobiology 
Northeastern Ohio Universities 
College of Medicine 
Rootstown, Ohio 44272 
Hanjiirgen Distel, Ph.D. 
Neuroanatomisches Laboratorie 
Institut Mediz. Psychologie 
Pettenkoferstr. 12 
8000 Munchen 2, West Germany 
Sven O.E. Ebbesson, Ph.D. 
Department of Anatomy 
Carl Gans, Ph.D. 
Division of Biological Sciences 
University of Michigan 
Ann Arbor, Michigan 48104 
Leslie Garrick, Ph.D. 
New York Zoological Society 
Bronx, New York 10460 
Neil Greenberg, Ph.D. 
Department of Zoology 
University of Tennessee 
Knoxville, Tennessee 37916 
James Heath, Ph.D. 
Department of Physiology and Biophysics 
University of Illinois 
Urbana, Illinois 61801 
Thomas A. Jenssen, Ph.D. 
Biology Department 
Virginia Polytechnic Institute and 
State University 
Blacksburg, Virginia 24061 
Dale L. Marcellini, Ph.D. 
National Zoological Park 
Smithsonian Institution 
Washington, D.C. 20009 
Paul D. MacLean, M.D. 
Laboratory of Brain Evolution and Behavior 
National Institute of Mental Health 
P.O. Box 289 
Poolesville, Maryland 20837 
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