| Issue | #259 |
| Published | April 1959 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Krypto |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Characters | Krypto; Superboy robots; Kryptonite; Lana Lang; Ma Kent; Pa Kent |
| Synopsis | A freak bolt of lightning strikes a meteor containing kryptonite, catching Superboy in the blast and giving him diamond vision which he can't turn off, so he must keep his eyes shut at all times. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | George Papp |
| Inks | George Papp |
| Notes | Includes 6-panel recap of Krypto's origin. |
| Reprinted | in Superboy Annual (DC, 1964 series) #1 (Summer 1964) |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Characters | Roland Peters |
| Synopsis | Roland Peters has constructed a brain-wave transmitter and is experimenting on illegally captured sealife when Aquaman arrives and releases his finny friends. Getting in a lucky shot, Peters knocks out Aquaman, and decides to give his device a real test run by transferring Aquaman's mind to different fish. |
| Genre | superhero |
| Pencils | Ramona Fradon |
| Inks | Ramona Fradon |
| Genre | fact |
| Script | Jack Schiff |
| Pencils | Bernard Baily |
| Inks | Bernard Baily |
| Letters | Ira Schnapp |
| Letters | typeset |
| Notes | Editorial replies include plugs for Supergirl's upcoming first appearance and the Aquaman origin story coming up in Adventure 260. |
| Characters | Green Arrow [Oliver Queen]; Speedy [Roy Harper]; Crimson Archer [Hector Vance; Herb Vraney] (intro); Arrow-Car |
| Synopsis | Millionaire Hector Vance offers a million dollars to charity if Green Arrow will teach him archery. Shortly after the archery lessons stop, The Crimson Archer starts a crime spree and GA learns that Hector Vance is really underworld kingpin Herb Vraney. |
| Genre | superhero |
| Pencils | Lee Elias |
| Inks | Lee Elias |
| Reprinted | in World's Finest Comics (DC, 1941 series) #154 (December 1965); in Showcase Presents Green Arrow (DC, 2006 series) #1 |