| Issue | #74 |
| Published | September-October 1965 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Jack Schiff |
| Characters | Prince Ra-Man; Eclipso (inset) |
| Genre | Super-hero |
| Pencils | Bernard Baily |
| Inks | Bernard Baily |
| Characters | Eclipso; Bruce Gordon; Professor Bennet; Mona Bennet |
| Synopsis | Bruce Gordon accidentally creates a "negative" Eclipso. |
| Genre | superhero |
| Script | Bob Haney |
| Pencils | Jack Sparling |
| Inks | Jack Sparling |
| Notes | Part 1 |
| Reprinted | In Showcase Presents: Eclipso (DC, 2009 series) #[nn] |
| Characters | A man; two boys |
| Synopsis | Two boys who are polluting a stream are given an anit-pollution lesson by a fisherman. Includes an excerpt from an 1869 Massachusetts Board of Health document. |
| Genre | fact |
| Script | Jack Schiff |
| Pencils | Sheldon Moldoff |
| Inks | Sheldon Moldoff |
| Letters | Ira Schnapp |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Characters | Eclipso; Bruce Gordon; Professor Bennet; Mona Bennet |
| Synopsis | Bruce Gordon manages to turn himself into a "good" Eclipso so he can defeat the Negative Eclipso. |
| Genre | superhero |
| Script | Bob Haney |
| Pencils | Jack Sparling |
| Inks | Jack Sparling |
| Notes | Part 2 |
| Reprinted | In Showcase Presents: Eclipso (DC, 2009 series) #[nn] |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Letters | typeset |
| Characters | Prince Ra-Man; Elsa; Caldoz (villain) |
| Genre | occult |
| Script | Bob Haney |
| Pencils | Bernard Baily |
| Inks | Bernard Baily |
| Notes | Writer id by Martin O'Hearn. Previously given incorrectly as Jack Miller. |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Notes | First Line: "I'll take you on a tour of the museum, Minerva." Title, first line and reprint data from Arthur Lortie, added August 2006. |
| Reprinted | from Superman's Girl Friend, Lois Lane (DC, 1958 series) #25 |