This story is Chapter XIII of Stapledon's 1930 novel Last and First Men.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1967 |
|
Masterpieces of Science Fiction | World Publishing Co. | Anthology | 469 |
| 1974 |
|
Masterpieces of Science Fiction | Hyperion Press | Anthology | 469 |
| 1974 |
|
Masterpieces of Science Fiction | Hyperion Press | Anthology | 469 |