THE SUPER-POWERS OF PARRY WHITE!
This story is reprinted from Action Comics #278.
THE GREAT KRYPTONITE MYSTERY
This story is reprinted from Superboy #58.
THE SUPER-REVENGE OF THE PHANTOM ZONE PRISONER!
This story is reprinted from Superman #157.
THE INVASION OF THE SUPER-ANTS
This story is reprinted from Action Comics #296.
SECRET OF KRYPTONITE SIX!
This story is reprinted from Action Comics #310.