Correcting an Egregious Error

In an earlier update I made the claim that Superman #4 consisted of reprints of stories already seen in Action Comics. I was dead wrong! Reading Action Comics #23 in order to witness Luthor's first appearance I uncovered this ad:

Which explicitly states that Superman #4 contains all new stories! HELL YES! This also means that Luthor appeared in Action Comics and Superman in the same month, clearly they had big plans for the red-headed charmer. If only he had stuck around...