MONSTERS BY ARTHUR K. BARNES

The Murri (1937) by Arthur K. Barnes
The Rotifer (1937) by Arthur K. Barnes
The Shovel-Mouth (1937) by Arthur K. Barnes
  The Venusians (2) (1937) by Arthur K. Barnes
The Whip (1937) by Arthur K. Barnes
 Whiz-Bang Beetles (1937) by Arthur K. Barnes