Weapon Out of Time by James Blish “Weapon Out of Time” by James Blish, Science Fiction Quarterly, Spring 1941.
Turn Backward O Time by Walter Kubilius “Turn Backward O Time” by Walter Kubilius, Science Fiction Quarterly, May 1951.
Time Goes to Now by Charles Dye “Time Goes to Now” by Charles Dye, Science Fiction Quarterly, May 1953.
Advice from Tomorrow by Mack Reynolds “Advice from Tomorrow” by Mack Reynolds, Science Fiction Quarterly, August 1953.
The Last Question by Isaac Asimov “The Last Question” by Isaac Asimov, Science Fiction Quarterly, November 1956.