According to http://www.porges.net/FamilyTreesBiographies/ArthurIrwinPorges1915.html#ap, this was the "final entry in this [i.e. Ensign De Ruyter] series that was rejected by the sf magazines of the time".
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 2008 | Eight Problems in Space: The Ensign De Ruyter Stories | The Battered Silicon Dispatch Box | Collection |