Astounding Stories of Super-Science, January 1931

The Dark Side of Antri / Sewell Peaslee Wright
The Sunken Empire / H. Thompson Rich
The Gate to Xoran / Hal K. Wells
The Eye of Allah / Charles Willard Diffin
The Fifth-Dimension Catapult / Murray Leinster
The Pirate Planet (Part 3 of 4) / Charles Willard Diffin