There is both a 1987 version of this essay (in "Foundation") and a 1995 version (in "Anticipations: Essays on Early Science Fiction and Its Precursors"). We do not know if the later version is a reprint or a revision of the earlier one.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1987 |
|
Foundation, #38 Winter 1986/87 | North East London Polytechnic | MAGAZINE | 30 |
| March 1995 |
|
Anticipations: Essays on Early Science Fiction and Its Precursors | Liverpool University Press | Nonfiction | |
| March 1995 |
|
Anticipations: Essays on Early Science Fiction and Its Precursors | Liverpool University Press | Nonfiction | |
| May 1995 | Anticipations: Essays on Early Science Fiction and Its Precursors | Syracuse University Press | Nonfiction | ||
| May 1995 | Anticipations: Essays on Early Science Fiction and Its Precursors | Syracuse University Press | Nonfiction |