By R. A. Lafferty, Mack Reynolds, Jerome Bixby, Keith Laumer, Alfred Coppel, August Derleth, Robert Moore Williams, Jim Harmon, Winston Marks, James Blish, Milton Lesser, Alan E. Nourse, Mari Wolf, J. F. Bone, L. Major Reynolds, Richard Wilson, Frank M. Robinson, H. B. Fyfe, Arthur Dekker Savage, James McKimmey, Jr., Boyd Ellanby, Alvin Heiner, Don Berry, Kenneth O’Hara, Dave Dryfoos, Mark Clifton, Russ Winterbotham, Alex Apostolides, Ralph Sholto, Russell Burton, Charles Fontenay, Andersen Horne