- Auth/Ed: John W. Campbell, Jr.
- Year: 1941
- Price: $0.20
- Pages: 162
- Cover: Hubert Rogers
| Serials/Complete Novels | |
| Methuselah's Children (Part 2 of 3) | Robert A. Heinlein |
| Novelettes | |
| Jurisdiction | Nat Schachner |
| Biddiver | Theodore Sturgeon |
| Short Stories | |
| A Meteor Legacy | Raymond Z. Gallun |
| Klystron Fort | William Carson |
| Backlash | Jack Williamson |
| Essays/Articles | |
| Prelude to Engineering | Willy Ley |