Available on page 321, <a target="_blank" rel="noopener" href="http://www.isfdb.org/cgi-bin/pl.cgi?GRSBCKYR1999">Bleiler (Gernsback)</a>.
Astounding Stories, April 1930, unsigned illustration.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1930 |
|
Astounding Stories of Super-Science, April 1930 | Publishers' Fiscal Corp | MAGAZINE | 47 |
| July 2009 | Astounding Stories of Super-Science, April 1930 | Project Gutenberg | Anthology | 47 | |
| August 2012 |
|
Short Science Fiction Collection 46 | LibriVox | Anthology | |19 |
| July 2013 |
|
Anthology of Sci-Fi V16, the Pulp Writers | Spastic Cat Press | Anthology | |
| October 2013 |
|
Astounding Stories of Super-Science, April 1930 | LibriVox | Anthology | 47 |
| March 2015 |
|
Astounding Stories, April 1930 | Sci-Fi Publishing | Anthology | |47 |