| Issue | #274 |
| Published | March 1961 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Superman [Clark Kent]; Superwoman [Lois Lane] |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Reprinted | In Showcase Presents Superman (DC, 2005 series) #2 |
| Characters | Superman [Clark Kent]; Superwoman [Lois Lane]; Jimmy Olsen; Perry White; Fortress of Solitude; Superman Robot Z; Green Kryptonite |
| Synopsis | While trying to make himself immune to Kryptonite an explosion in the lab removes Superman's power and gives Lois powers. |
| Genre | superhero |
| Script | Jerry Siegel |
| Pencils | Kurt Schaffenberger |
| Inks | Kurt Schaffenberger |
| Reprinted | in Superman's Girl Friend, Lois Lane (DC, 1958 series) #104 (October 1970); in Showcase Presents Superman (DC, 2005 series) #2 |
| Characters | Supergirl; Annie Oakley; Buffalo Bill; George Washington; Betsy Ross; Captain John Smith; Running Deer; Pocahontas; Green Kryptonite; Fortress of Solitude |
| Genre | superhero |
| Script | Jerry Siegel |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Reprinted | in Supergirl Archives (DC, 2001 series) #2; in Showcase Presents: Supergirl (DC, 2007 series) #1 |