| Issue | #306 |
| Published | August 1962 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Jack Schiff |
| Genre | superhero |
| Pencils | Sheldon Moldoff |
| Inks | Sheldon Moldoff |
| Characters | Batman; Robin; Alfred; Ace the Bat-Hound; Lancelot Wayne; Professor Arnold Hugo (intro) |
| Synopsis | His brain enlarged by a freak accident, Prof Hugo attacks Batman with invisibile robots. |
| Genre | superhero |
| Pencils | Sheldon Moldoff |
| Inks | Charles Paris |
| Notes | Mention that Bruce's ancestor Lancelot, tried to glide using a bat wing model. All of Hugo's subsequent appearances are as a Martian Manhunter villain. |
| Genre | humor |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Characters | Martian Manhunter (John Jones, J'Onn J'Onzz);Diane Meade; Capt Harding |
| Synopsis | A rare meteorite saps Manhunter's powers as he battles giant robot animals created by an unnamed scientist. |
| Genre | superhero |
| Script | Jack Miller ? |
| Pencils | Joe Certa |
| Inks | Joe Certa |
| Notes | writer id by Bob Hughes 5/09 |
| Reprinted | in Showcase Presents Martian Manhunter (DC, 2007 series) #2 |
| Script | Jack Schiff |
| Pencils | Sheldon Moldoff |
| Inks | Sheldon Moldoff |
| Letters | Ira Schnapp |