- Series: Under Observation Series Record # 37991
- Under Observation
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Spring 1940) (1940) [ES] by The Editor
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Summer 1940) (1940) [ES] by The Editor
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Fall 1940) (1940) [ES] by The Editor
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Winter 1940) (1940) [ES] by The Editor
- Under Observation (Captain Future, Winter 1940) (1940) [ES] by Mort Weisinger [only as by The Editor]
- Under Observation (Captain Future, Spring 1940) (1940) [ES] by various
- Under Observation (Captain Future, Summer 1940) (1940) [ES] by various
- Under Observation (Captain Future, Fall 1940) (1940) [ES] by various
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Spring 1941) (1941) [ES] by Sergeant Saturn
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Fall 1941) (1941) [ES] by Sergeant Saturn
- Under Observation (Captain Future, Winter 1941) (1941) [ES] by various
- Under Observation (Captain Future, Spring 1941) (1941) [ES] by various
- Under Observation (Captain Future, Summer 1941) (1941) [ES] by various
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Summer 1941) (1941) [ES] by Sergeant Saturn
- Under Observation (Captain Future, Fall 1941) (1941) [ES] by various
- Under Observation (Captain Future, Winter 1942) (1941) [ES] by various
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Fall 1942) (1942) [ES] by Sergeant Saturn
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Spring 1942) (1942) [ES] by Sergeant Saturn
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Winter 1942) (1942) [ES] by Sergeant Saturn
- Under Observation (Captain Future, Spring 1942) (1942) [ES] by various
- Under Observation (Captain Future, Summer 1942) (1942) [ES] by various
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Summer 1942) (1942) [ES] by Sergeant Saturn
- Under Observation (Captain Future, Fall 1942) (1942) [ES] by various
- Under Observation (Captain Future, Winter 1943) (1942) [ES] by various
- Under Observation (Captain Future, Spring 1943) (1943) [ES] by various
- Under Observation (Captain Future, Summer 1943) (1943) [ES] by various
- Under Observation; Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Summer 1943) (1943) [ES] by Sergeant Saturn
- Under Observation (Captain Future, Winter 1944) (1943) [ES] by various
- Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet (Captain Future, Winter 1944) (1944) [ES] by Sergeant Saturn
- Under Observation (Captain Future, Spring 1944) (1944) [ES] by various