DC · June, 1958
Reprint from Adventure Comics #185 (Feb 1953); Time travel
The Superman Book That Couldn’t Be Finished; puzzle: Fun Shop; game: Play 100; Jimmy Olsen’s Super Pet; Gag Bag (text); cartoon: Little Pete; cartoon: Peg; The Amazing Spectacles of Doctor "X"
Writers: Otto Binder, Henry Boltinoff, Jack Schiff
Artists: Curt Swan, Henry Boltinoff, Bob Brown