CHARLES L. ELKINS is Professor of English at Florida International University. His publications have appeared in many journals, including Extrapolation, Science-Fiction Studies, and Journal of Popular Culture, and he has contributed to many critical anthologies and reference books.MARTIN HARRY GREENBERG is Professor of Political Science at the University of Wisconsin-Green Bay. Among his over 200 books are some 20 scholarly works in the science fiction field. He was co-editor, with Patrick A. McCarthy and Charles L. Elkins, of The Legacy of Olaf Stapledon (Greenwood Press, 1989).