| Issue | #259 |
| Published | December 1959 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Superman [Clark Kent]; Lois Lane; Lana Lang; Luthor |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Reprinted | In Showcase Presents Superman (DC, 2005 series) #2 |
| Characters | Superman [Clark Kent]; Superboy [Clark Kent]; Luthor; Lana Lang; Lois Lane; Red Kryptonite; Perry White; "Flashy" Burke |
| Synopsis | Exposure to Red Kryptonite seemingly causes Superman and Superboy to exist simultaneously, Luthor takes advantage by trapping Superboy and forcing Superman to choose between Lois and Lana. |
| Genre | superhero |
| Script | Jerry Siegel |
| Pencils | Al Plastino |
| Inks | Al Plastino |
| Reprinted | in 80 Page Giant (DC, 1964 series) #1 (August 1964); In Showcase Presents Superman (DC, 2005 series) #2 |
| Characters | Congo Bill; Congorilla; Janu the Jungle Boy |
| Genre | superhero; jungle |
| Script | Robert Bernstein |
| Pencils | Howard Sherman |
| Inks | Howard Sherman |
| Reprinted | in World's Finest Comics (DC, 1941 series) #150 (June 1965) |
| Characters | Supergirl |
| Synopsis | Supergirl visits the stone age so that she can practice using her powers openly. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Reprinted | in Action Comics (DC, 1938 series) #334 (March 1966); in Supergirl Archives (DC, 2001 series) #1; in Showcase Presents: Supergirl (DC, 2007 series) #1 |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |