Prophetic science fiction: Life-line; The Roads Must Roll; Blowups Happen; The Man Who Sold the Moon; Delilah and the Spacerigger; Space Jockey; Requiem; The Long Watch; Gentlemen, Be Seated; The Black Pits of Luna; "It's Great to Be Back!"; "We Also Walk Dogs"; Searchlight; Ordeal in Space; The Green Hills of Earth; Logic of Empire; The Menace from Earth; "If This Goes On ... "; Conventry; Misfit; and Methuselah's Children.