This story is in parts: Prologue; Chapter 1: Gorilla My Dreams!; Chapter 2: Six and Seven Apes!; and Chapter 3: Planned It for the Apes! The overall title, "The End of the World!" is in relatively small red print at the top of the first page.
Continues in Green Arrow story "The Underwater Archers!" in this same issue.
Continues from the Aquaman story "The Manhunt on Land!" in this issue.