First published in Unknown, June 1939.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1939 |
|
Unknown, June 1939 | Street & Smith Publications, Inc. | MAGAZINE | 97 |
| 1949 |
|
The Wheels of If, and Other Science Fiction | Shasta | Collection | 194 |
| July 1953 |
|
Fantastic Story Magazine, July 1953 | Best Books, Inc. | MAGAZINE | 122 |
| April 1954 |
|
Human? | Lion Books | Anthology | 81 |
| April 1963 |
|
The Unknown | Pyramid Books | Anthology | 63 |
| March 1970 |
|
The Freak Show | Rapp & Whiting | Anthology | 89 |
| October 1970 |
|
The Wheels of If and Other Science-Fiction | Berkley Medallion | Collection | 168 |
| October 1970 |
|
The Unknown | Pyramid Books | Anthology | 63 |
| October 1970 |
|
The Unknown | Pyramid Books | Anthology | 63 |
| March 1971 |
|
The Freak Show | Corgi | Anthology | 87 |
| 1972 |
|
The Freak Show | Thomas Nelson | Anthology | 81 |
| 1973 |
|
Het onbekende | Luitingh | Anthology | 57 |
| December 1973 |
|
Ungeheuer | Fischer Taschenbuch | Anthology | 82 |
| July 1974 |
|
Ungeheuer | Fischer Taschenbuch | Anthology | 82 |
| July 1976 |
|
Ungeheuer | Fischer Taschenbuch | Anthology | 82 |
| November 1976 |
|
Les meilleurs récits de Unknown | J'ai Lu | Anthology | 131 |
| 1978 |
|
Die Räder der Zeit | Heyne | Collection | |03 |
| February 1978 |
|
The Best of L. Sprague de Camp | Nelson Doubleday / SFBC | Collection | 73 |
| May 1978 |
|
The Best of L. Sprague de Camp | Del Rey / Ballantine | Collection | 87 |
| May 1978 |
|
The Best of L. Sprague de Camp | Del Rey / Ballantine | Collection | 87 |
| August 1978 |
|
The Unknown | Jove / HBJ | Anthology | 63 |
| August 1978 |
|
The Unknown | Jove / HBJ | Anthology | 63 |
| March 1979 |
|
The Great Science Fiction Stories Volume 1, 1939 | DAW Books | Anthology | 141 |
| March 1979 |
|
The Great Science Fiction Stories Volume 1, 1939 | DAW Books | Anthology | 141 |
| June 1979 |
|
Dawn of Time: Prehistory Through Science Fiction | Elsevier / Nelson Books | Anthology | 132 |
| October 1979 |
|
Straße der Verdammnis | Pabel | Anthology | 33 |
| March 1981 |
|
Die besten Stories von L. Sprague de Camp | Moewig | Collection | 89 |
| 1983 |
|
Isaac Asimov Presents The Golden Years of Science Fiction | Bonanza Books / Crown Publishers | Anthology | 141 |
| January 1984 |
|
Histoires d'immortels | Le Livre de Poche | Anthology | 83 |
| May 1986 |
|
The Best of L. Sprague de Camp | Del Rey / Ballantine | Collection | 87 |
| February 1987 |
|
Neanderthals | Signet / New American Library | Anthology | 223 |
| February 1987 |
|
Neanderthals | Signet / New American Library of Canada | Anthology | 223 |
| 1988 |
|
Unknown Worlds: Tales from Beyond | Galahad Books | Anthology | 30 |
| January 1991 |
|
Le grandi storie della fantascienza 1 | Bompiani | Anthology | 163 |
| 1993 |
|
Unknown Worlds: Tales from Beyond | Bristol Park Books | Anthology | 30 |
| January 1997 |
|
Modern Classics of Fantasy | St. Martin's Press | Anthology | |
| March 1997 |
|
Modern Classics of Fantasy | St. Martin's Press / SFBC | Anthology | 18 |
| November 1997 |
|
Modern Classics of Fantasy | St. Martin's Griffin | Anthology | |
| August 2000 |
|
My Favorite Fantasy Story | DAW Books | Anthology | 98|98.2 |
| 2001 |
|
Great Science Fiction Stories of 1939 | Dorset Press | Anthology | 141 |
| August 2002 |
|
Aristotle and the Gun and Other Stories | Five Star | Collection | 57 |
| July 2004 |
|
My Favorite Fantasy Story | ibooks | Anthology | |
| February 2005 |
|
Years in the Making: The Time-Travel Stories of L. Sprague de Camp | NESFA Press | Collection | 139 |
| September 2005 |
|
Years in the Making: The Time-Travel Stories of L. Sprague de Camp | NESFA Press / SFBC | Collection | 139 |
| June 2006 |
|
Le grandi storie della SF vol. 1 | Mondadori | Anthology | 217 |
| April 2007 | Jim Baen's Universe, April 2007 | Baen Books | MAGAZINE | 9 | |
| October 2014 |
|
Modern Classics of Fantasy | St. Martin's Press | Anthology | |
| December 2014 |
|
The Best of L. Sprague de Camp | Phoenix Pick | Collection | |
| December 2014 |
|
The Best of L. Sprague de Camp | Phoenix Pick | Collection | 95 |