| Issue | #439 |
| Published | September 1974 |
| Cover Price | $0.20 |
| Pages | 36 |
| Editing | Julius Schwartz; E. Nelson Bridwell (assistant editor) |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. [August 2007] |
| Characters | Superman; Captain Strong |
| Genre | Super-hero |
| Pencils | Nick Cardy |
| Inks | Nick Cardy |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. [August 2007] |
| Characters | Superman; Captain Strong; Carnox; Olivia Tallow; S. T. A. R. Labs; Mr. Mitchel |
| Synopsis | The spaceman Carnox was caught on Earth 1 million years ago and is revived in the present. He has got a decease that can be cured by Captain Strong's sauncha plants. |
| Genre | Super-hero |
| Script | Cary Bates |
| Pencils | Curt Swan |
| Inks | Bob Oksner |
| Notes | Captain Strong, Olivia Tallow and Carnox are modelled after Popeye, Olive Oyl and Bluto. |
| Characters | The Atom; Professor Myles Adrian (villain); Jean Loring |
| Synopsis | Professor Myles Adrian has gained the power to shrink to 2 dimensions, but is dying by it. |
| Genre | Super-hero |
| Script | Martin Pasko |
| Pencils | Dick Dillin |
| Inks | Tex Blaisdell |
| Notes | Part 2. Story continued from Action Comics (DC, 1938 series) #438. Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |