| Issue | #239 |
| Published | August 1957 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Whitney Ellsworth (credited), Jack Schiff (Managing Editor), Mort Weisinger, George Kashdan (story editors) |
| Characters | Krypto |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Reprinted | in Superman in the Fifties (DC, 2002 series) #nn |
| Characters | Krypto; Lana Lang, kryptonite |
| Synopsis | After being hit by a meteor, Krypto learns to talk. And Superboy becomes jealous of all the attention he's getting. |
| Genre | superhero |
| Script | Jerry Coleman |
| Pencils | John Sikela |
| Inks | John Sikela |
| Notes | Proto-Red Kryptonite story. Writer id by Bob Hughes 8/05. |
| Genre | fact |
| Script | Jack Schiff |
| Pencils | Ruben Moreira |
| Inks | Ruben Moreira |
| Letters | Ira Schnapp |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Characters | The Trickster (not the Flash villain) |
| Genre | superhero |
| Pencils | George Papp |
| Inks | George Papp |
| Reprinted | In Big Boy (Artima, 1956 series) #19 April 1958 |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Letters | typeset |
| Genre | superhero |
| Pencils | Ramona Fradon |
| Inks | Ramona Fradon |