Contents (view Concise Listing)

•  The Unknown • interior artwork by Edd Cartier
• 7 • Foreword (The Unknown) • [Asimov's Essays: Other's Work] • (1963) • essay by Isaac Asimov
• 11 • Introduction (The Unknown) • (1963) • essay by D. R. Bensen
• 13 • The Misguided Halo • (1939) • short story by Henry Kuttner
• 31 • Prescience • (1941) • short story by Nelson S. Bond
• 43 • Yesterday Was Monday • (1941) • short story by Theodore Sturgeon
• 63 • The Gnarly Man • (1939) • novelette by L. Sprague de Camp
• 85 • The Bleak Shore • [Fafhrd and the Gray Mouser] • (1940) • short story by Fritz Leiber
• 97 • Trouble with Water • (1939) • short story by H. L. Gold
• 119 • Doubled and Redoubled • (1941) • short story by Malcolm Jameson
• 137 • When It Was Moonlight • (1940) • short story by Manly Wade Wellman
• 153 • Mr. Jinx • (1941) • short story by Robert Arthur
• 171 • Snulbug • (1941) • short story by Anthony Boucher
• 187 • Armageddon • (1941) • short story by Fredric Brown