Data courtesy of the Grand Comics Database under Creative Commons license.

Issue Details

Issue #310
Published March 1964
Cover Price 0.12 USD
Pages 36
Editing Mort Weisinger

Cover Details - "The Secret of Kryptonite Six!"

Characters Jimmy Olsen; General Zod; Professor Vakox; Superman; Jewel Kryptonite
Genre superhero
Pencils Curt Swan
Inks Shelly Moldoff

13 page Superman story "Secret of Kryptonite Six!"

Characters Superman; Perry White; Jimmy Olsen; Professor Vakox; Lori Lemaris; Kandor; Vorb-Un; Jax-Ur (villain); a thought-beast; Supergirl; Jewel Kryptonite (intro); Fortress of Solitude; Phantom Zone
Genre superhero
Script Leo Dorfman
Pencils Curt Swan
Inks George Klein
Reprinted in Superman (DC, 1939 series) #227 (June-July 1970); in Best of DC, The (DC, 1979 series) #36

1 page public service announcement "Give and Take"

Characters Mr. Craig; Fred; Fred's sister; Mrs. Craig; 2 other children
Synopsis The children take some broken and unused toys to Mr. Craig, who helps them to repair them and they then donate them to charity uses.
Genre fact
Script Jack Schiff
Pencils Sheldon Moldoff
Inks Sheldon Moldoff
Letters Ira Schnapp
Notes The final panel lists some ways you can share with senior citizens. Credits from a list by Lionel English.

13 page Supergirl story "Supergirl's Rival Parents!"

Characters Kandor; Allura; Zor-El; Comet the Super-Horse; Fred Danvers; Edna Danvers; Kandor; Fortress of Solitude; The Survival Zone; Superman Museum
Genre superhero
Script Leo Dorfman
Pencils Jim Mooney
Inks Jim Mooney
Notes Kryptonian parents brought back to earth
Reprinted in DC 100-Page Super Spectacular (DC, 1971 series) #DC-10; in Adventure Comics (DC, 1938 series) #416 (March 1972); in Superman Family (DC, 1974 series) #165 (one panel only reprinted); in Showcase Presents: Supergirl (DC, 2007 series) #2