| Issue | #220 |
| Published | October 1969 |
| Cover Price | 0.15 |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Superman; Flash [Barry Allen] |
| Synopsis | Flash punches at Superman with super-strength but Superman dodges with Flash's vibrating power |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Murphy Anderson |
| Characters | a world-killing alien plant (villain); Superman [Earth-1]; Flash [Barry Allen]; Jimmy Olsen; Lois Lane; Brad Hunter; Perry White; Iris Allen; green kryptonite |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | George Roussos |
| Reprinted | in Best of DC, The (DC, 1979 series) #8 |