| Issue | #319 |
| Published | April 1964 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Mort Weisinger |
| Notes | last Smallville Mailbag |
| Characters | Legion of Super-Heroes [Superboy; Brainiac 5; Bouncing Boy; Chameleon Boy; Saturn Girl; Ultra Boy; Cosmic Boy; Triplicate Girl; Star Boy] |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Sheldon Moldoff |
| Letters | Ira Schnapp |
| Notes | last Smallville Mailbag |
| Reprinted | in Legion of Super-Heroes Archives, The (DC, 1991 series) #3 |
| Characters | Bob Hope |
| Synopsis | The Golden Rule is universal |
| Script | Jack Schiff |
| Pencils | Bob Oksner |
| Inks | Bob Oksner |
| Letters | Ira Schnapp |
| Notes | inside front cover |
| Characters | Legion of Super-Heroes [Colossal Boy; Element Lad; Sun Boy; Shrinking Violet; Phantom Girl; Mon-El; Superboy; Bouncing Boy; Saturn Girl; Chameleon Boy; Brainiac 5; Star Boy; Triplicate Girl; Invisible Kid; Lightning Lad; Cosmic Boy] |
| Synopsis | Isolationist planet Throon builds a citadel to keep others away and uses a ray to disable all passing spaceships. The first Legion team selected to take out the ray meets their defeat. |
| Genre | superhero |
| Script | Edmond Hamilton |
| Pencils | John Forte |
| Inks | John Forte |
| Editing | Mort Weisinger |
| Reprinted | in Best of DC, The (DC, 1979 series) #44; in Legion of Super-Heroes Archives, The (DC, 1991 series) #3 |
| Characters | Legion of Substitute-Heroes [Fire Lad; Chlorophyll Kid; Polar Boy; Stone Boy; Night Girl]; Legion of Super-Heroes [Sun Boy; Star Boy; Triplicate Girl; Ultra Boy; Matter-Eater Lad; Cosmic Boy; Invisible Kid; Superboy; Brainiac 5; Bouncing Boy; Chameleon Boy; Saturn Girl; Element Lad; Phantom Girl; Colossal Boy; Light Lass; Mon-El; Lightning Lad] |
| Synopsis | The next two teams of Legionnaires also fail, but the Subs are able to put an end to the menace of Throon. |
| Genre | superhero |
| Script | Edmond Hamilton |
| Pencils | John Forte |
| Inks | John Forte |
| Letters | Milton Snapinn (splash only); ? |
| Editing | Mort Weisinger |
| Reprinted | in Best of DC, The (DC, 1979 series) #44; in Legion of Super-Heroes Archives, The (DC, 1991 series) #3 |
| Characters | Superboy; Jonathan Kent; Martha Kent; Jack; Freddy Shaw (intro, dies); Freddy Shaw robot; Mr. Gray (a teacher); Dr. Kenyon; Joe Shaw; Rick Farrow |
| Synopsis | Freddy Shaw becomes Clark Kent's best friend and is let in on his secret identity as Superboy. Freddy proceeds to blab to his ex-convict half-brother Joe and his buddy Rick Farrow and finally in his last few hours to anyone who was close to his death bed. All of Freddy's blabbing was caused by his brain fever delirium. |
| Genre | superhero |
| Script | Robert Bernstein |
| Pencils | George Papp |
| Inks | George Papp |
| Editing | Mort Weisinger |
| Notes | A "Hall of Fame Classic". Writer was listed as Leo Dorfman, but the original had Robert Bernstein; confirmed by Bob Hughes that Bernstein is the author (2009-01-03 by Allen Ross). |
| Reprinted | from Superboy (DC, 1949 series) #77 (December 1959). |