An address to the British Interplanetary Society given in 1948, first published as "Interplanetary Man?" in the November issue of the society's own journal. The version in The Coming of the Space Age (1967) is a slightly shortened one. Also published in "Fate".
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1954 |
|
Science Fiction Digest, Vol 1 No 1, 1954 | Specific Fiction, Corp. | MAGAZINE | 63 |
| April 1967 |
|
The Coming of the Space Age | Meredith Press | Nonfiction | 244 |
| 1970 |
|
The Coming of the Space Age | Panther | Nonfiction | 265 |
| 1979 |
|
Far Future Calling: Uncollected Science Fiction and Fantasies of Olaf Stapledon | Oswald Train | Collection | 209 |
| December 1986 | Far Future Calling | Donald M. Grant | Collection | 209 | |
| December 2015 |
|
Far Future Calling | Gateway / Orion | Collection | |209 |