Slaves of the Unknown
| First published | March 1942 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
| Series | Professor Jameson |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1942 |
|
Astonishing Stories, March 1942 | Fictioneers, Inc. | MAGAZINE | 10 |
| May 1942 |
|
Astonishing Stories, May 1942 | Popular Publications, Inc.; Toronto, Canada | MAGAZINE | 4 |