Astounding Science Fiction October 1951 (Volume 48, Number 2)
Illustrations by Ed Cartier, Paul Orban, H. R. van Dongen. Cover by H. R. van Dongen (for "Iceworld.")

Serial: "Iceworld" (Part 1 of 3) by Hal Clement.

Novelette: "Thinking Machine" by H. B. Fyfe.

Stories: "'The Years Draw Nigh'" by Lester del Rey
"Ultima Thule" by Eric Frank Russell
"The Head Hunters" by Ralph Williams.

Science: "These Rare Earths" by William Olcott.

John W. Campbell's editorial is "Evaluation of Dianetics"; Book reviews by P. Schuyler Miller.