Astounding Science Fiction (UK) [Vol. XII No. 12, December 1956] ed. John W. Campbell, Jr. (Atlas Publishing & Distributing Co. Ltd., 1/9d, 128pp, 5.5″ x 7.25″, cover: Critical Difference after H. R. Van Dongen) []
Reprint of the July 1956 (US) issue, except for the article “Island in the Sky” by Robert S. Richardson.
Astounding Science Fiction (UK) [Vol. XIII No. 3, March 1957] ed. John W. Campbell, Jr. (Atlas Publishing & Distributing Co. Ltd., 1/9d, 128pp, 5.5″ x 7.25″, cover: Sour Note on Palayata after Frank Kelly Freas) []
Reprint of the November 1956 (US) issue, except for the article “The Troublesome Dimensions” by Poul Anderson.