Robert C. King is an Emeritus Professor in the Department of Biochemistry, Molecular Biology
and Cell Biology at Northwestern University. He bas published 117 papers and review articles in the field of genetic control of insect oogenesis and has written several books. William D. Stansfield is an Emeritus Professor in the Biological Sciences Department at California Polytechnic State University. He has published numerous books including The Science of Evolution, Theory and Problems in Genetics, and Death of a Rat : Understandings and Appreciations of Science.