Analog: May 1964 ("Bedsheet" size issue: 8-1/2" by 11".)
Illustrations by Michael Arndt, John Schoenherr (the one for "Undercurrents" is spectacular- as is the cover), Laszlo Kubinyi. Cover by John Schoenherr (for "Undercurrents.")

Science: "The Problem of the Gyroscopic Earth" by Capt. J. P. Kirton
"Possible Relationships Between Smoking and Lung Cancer" by I. D. Murray.

Serial: "Undercurrents" (Part 1 of 2) by James H. Schmitz (A "Telzey" story, incorporated into The Universe Against Her.)

Short Novel: "Once a Cop" by Rick Raphael (a sequel to "Code Three" from Feb. 1963, this was nominated for a Hugo award, and incorporated into the novel Code Three.)

Stories: "Fair Warning" by John Brunner
"A Niche in Time" by William F. Temple
"Hunger" by Christopher Anvil.

John W. Campbell's editorial is "Transphonemater." Book reviews by P. Schuyler Miller.