New Worlds Science Fiction, #66 (12/1957)

CONTENTS: • New Worlds Profiles: John Brunner • [New Worlds Profiles] • essay by uncredited • Superman - What Now? • essay by John Carnell • Threshold of Eternity (Part 1 of 3) • serial by John Brunner • A Sense of Value • short story by D. M. Parks • 6th Australian S-F Convention • essay by uncredited • Conquest Deferred • novelette by Lan Wright • Progress of I.G.Y.: 2. Look to the Sky • essay by Kenneth Bulmer and John Newman [as by Kenneth Johns] • Swap Shop • short story by A. Bertram Chandler [as by Bertram Chandler] • Crabs and Californium • essay by John Newman • The Ice Mass Cometh • short story by Brian W. Aldiss • Critical Threshold • novelette by Robert Silverberg (variant of New Men for Mars) •   Review: The Midwich Cuckoos by John Wyndham • review by Leslie Flood •   Review: Fallen Star by James Blish • review by Leslie Flood •   Review: High Vacuum by Charles Eric Maine • review by Leslie Flood • Review of the nonfiction, nonassociational work "Wonderama" by Angela Croome • essay by Leslie Flood • Review of the nonfiction, nonassociational work "Men, Missiles and Machines" by Lancelot Hogben • essay by Leslie Flood