The Magazine of Fantasy and Science Fiction [UK], September 1960
From Author Wars - https://authorwars.com/publications/the-magazine-of-fantasy-and-science-fiction-uk-september-1960-354870.html
Overview:
- Title: The Magazine of Fantasy and Science Fiction [UK], September 1960
- Author: uncredited
- Year: 1960
- Publisher: Atlas Publishing and Distribution Co. Ltd
- Price: 2/-
- Pages: 132
- Binding: digest
- Type: MAGAZINE
- Title Reference: The Sixth Season
- Notes: Vol. 1, No. 10
Cover is taken from the US June 1960 issue and the contents come mostly from the same US issue.
It's likely that Asimov's essay is the same as this one