“ The Man Who Ruled the World • Robert Moore Williams • novelette Escape Through Space • Ross Rocklynne • short story The Master of Golden City • Polton Cross • novelette The Vanishing Diamonds [Professor Stilwell] • Charles R. Tanner • short story A Summons from Mars • John Russell Fearn • novelette The Space Pirate • Eando Binder • novelette The Invisible Bomber • Lieut. ”