Space Mail
by Isaac Asimov, Martin H. Greenberg, Charles G. Waugh, Mark Twain, Arsen Darnay, Will Stanton, John Collier, Joan D. Vinge, Algis Budrys, William John Watkins, Anthony Boucher, R. A. Lafferty, Gerald Jonas, Arthur C. Clarke, Sharon Webb, Paul J. Nahin, Al Sarrantonio, Barry N. Malzberg, John Sladek, Murray Leinster, L. Sprague De Camp, John W. Campbell