Available on page 30, <a target="_blank" rel="noopener" href="http://www.isfdb.org/cgi-bin/pl.cgi?GRSBCKYR1999">Bleiler (Gernsback)</a>.
Amazing Stories Quarterly, Summer 1929, illustrated by Hugh Mackay.
Rewritten from "The Fatal Ray," The American Journal of Clinical Medicine, May through July 1922. (Chapter I in particular has been expanded considerably).
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1929 |
|
Amazing Stories Quarterly, Summer 1929 | Experimenter Publishing Company | MAGAZINE | 360 |
| May 2025 |
|
Rays and Men | Roy Glashan's Library | Chapbook |