Over the time span of 90 years young Ronny comes into contact with the scientist Dr. Revert Purcell who gets under government pressure for not sharing his potentially useful knowledge on biological warfare
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1953 |
|
Galaxy Science Fiction, March 1953 | Galaxy Publishing Corporation | MAGAZINE | 59 |
| July 1955 |
|
Operation Future | Permabooks | Anthology | 301 |
| November 1955 |
|
I Romanzi di Urania #103 | Mondadori | MAGAZINE | 105 |
| September 1956 |
|
Operation Future | Permabooks | Anthology | 301 |
| September 1959 | Galaxy science fiction, september 1959 | Illustrerade klassiker | MAGAZINE | ||
| 1962 |
|
The Diploids | Avon | Collection | 164 |
| 1962 |
|
The Diploids | Avon | Collection | 164 |
| April 1972 |
|
Young Demons | Avon | Anthology | 139 |
| April 1972 |
|
Young Demons | Avon | Anthology | 139 |
| 1973 |
|
The Diploids | Manor Books | Collection | 157 |
| April 1975 |
|
Histoires de pouvoirs | Le Livre de Poche | Anthology | 105 |
| September 1976 |
|
L'ouragan du temps | OPTA | Novel | 241 |
| May 1981 |
|
The Diploids | Gregg Press | Collection | |
| 1982 |
|
Neue Science-Fiction Geschichten | Tosa | Anthology | 47 |
| April 1985 |
|
Histoires de pouvoirs | Le Livre de Poche | Anthology | 105 |
| March 2000 |
|
The Diploids | Wildside Press | Collection | |
| March 2004 |
|
Nebula Awards Showcase 2004 | Roc / New American Library | Anthology | 218 |
| March 2010 | Games | Project Gutenberg | Chapbook | ||
| November 2010 |
|
Short Science Fiction Collection 42 | LibriVox | Anthology | |9 |
| April 2011 |
|
Women Resurrected: Stories from Women Science Fiction Writers of the 50's | Resurrected Press | Anthology | 197 |
| July 2015 |
|
Short Science Fiction Collection 52 | LibriVox | Anthology | |3 |
| January 2016 |
|
The 29th Golden Age of Science Fiction Megapack | Wildside Press | Collection | |
| January 2016 |
|
Science Fiction Collection | Katherine MacLean | Collection | |
| March 2019 |
|
The 14th Science Fiction Megapack | Wildside Press | Anthology | |
| January 2022 |
|
Science Fiction by Women (1953-1957) | Journey Press | Anthology | 1 |
| February 2022 |
|
Science Fiction by Women (1953-1957) | Journey Press | Anthology | |1 |
| July 2023 |
|
Women Wrote the Future: Vol. 1: Tales from Galaxy | Vintage Lists | Anthology | |2 |
| July 2023 |
|
Women Wrote the Future: Vol. 1: Tales from Galaxy | Vintage Lists | Anthology | 4 |