| Issue | #240 |
| Published | May 1958 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Whitney Ellsworth (credited); Jack Schiff (managing); Mort Weisinger, George Kashdan (assistants) |
| Characters | Superman |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Characters | Superman; Lois Lane; Clark Kent robot; Perry White; kryptonite |
| Synopsis | Lois discovers a Clark Kent robot in a closet at the Daily Planet, and a strange Sphinx with a Superman head and kryptonite vision goes into orbit around the Earth. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | Wayne Boring |
| Inks | Stan Kaye |
| Genre | humor |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff |
| Colors | ? |
| Letters | Henry Boltinoff |
| Genre | humor |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff |
| Colors | ? |
| Letters | Henry Boltinoff |
| Characters | Tommy Tomorrow; Brent Wood |
| Synopsis | Tommy is on trial for the murder of Brent Wood. |
| Genre | science fiction |
| Script | Otto Binder |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Reprinted | in Big Boy (Artima, 1956 series) #45; in Legion of Super-Heroes (DC, 1973 series) #3 (April-May 1973) |
| Genre | celebrity; humor |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Letters | typeset |
| Genre | fact |
| Script | Martin Naydel |
| Pencils | Martin Naydel |
| Inks | Martin Naydel |
| Characters | Congo Bill; Janu the Jungle Boy; Professor Wakely |
| Genre | jungle |
| Script | Jack Miller ? |
| Pencils | Howard Sherman |
| Inks | Howard Sherman |
| Notes | Story title from Dick Sabo on 8 November 2004. Writer id by Bob Hughes 12/06 |
| Genre | teen; humor |
| Script | Jack Schiff |
| Pencils | Win Mortimer |
| Inks | Win Mortimer |