Available on page 321, <a target="_blank" rel="noopener" href="http://www.isfdb.org/cgi-bin/pl.cgi?GRSBCKYR1999">Bleiler (Gernsback)</a>.
Astounding Stories, February 1930, unsigned illustration.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1930 |
|
Astounding Stories of Super-Science, February 1930 | Publishers' Fiscal Corp | MAGAZINE | 248 |
| April 2009 | Astounding Stories of Super-Science, February 1930 | Project Gutenberg | Anthology | 248 | |
| May 2009 |
|
Pulp Classics: Astounding Stories #2 (February, 1930) | Wildside Press | Anthology | |248 |
| October 2010 |
|
Short Science Fiction Collection 41 | LibriVox | Anthology | |9 |
| June 2013 |
|
Astounding Stories of Super-Science, February 1930 | LibriVox | Anthology | |7 |
| July 2013 |
|
Anthology of Sci-Fi V16, the Pulp Writers | Spastic Cat Press | Anthology | |
| February 2014 |
|
Astounding Stories of Super-Science: Vol. 1 No. 2 February, 1930 | CreateSpace | Anthology | 211 |
| March 2014 |
|
Astounding Stories of Super-Science, February 1930 | Richard Buchko | Anthology | 248 |
| January 2015 |
|
Astounding Stories of Super-Science, February 1930 | Robert Willis | Anthology | |
| March 2015 |
|
Astounding Stories, February 1930 | Sci-Fi Publishing | Anthology | |248 |
| February 2018 |
|
Astounding Stories of Super-Science, February 1930 | Anthology |