Analog Science Fact - Science Fiction February 1963 (Volume 70, Number 6)
Illustrations by John Schoenherr, George Schelling. Cover by John Schoenherr (for "Code Three.")

Novelette: "Code Three" by Rick Raphael (formed beginning of Code Three.)

Stories: "Hilifter" by Gordon R. Dickson
"Something Will Turn Up" by David Mason
"The Topper" by Arthur Porges
"With No Strings Attached" by David Gordon (Randall Garrett.)

Serial: "Space Viking" (conclusion) by H. Beam Piper.

Science: "The Sound of Gasping" by Mel Sturgis.

John W. Campbell's editorial is "Finagle's Factory"; "Crucial Experiment #5" by Joseph Goodavage; Book reviews by P. Schuyler Miller. This is the last digest-sized issue for over 2 years. March 1963 to March 1965 were an experiment to see how Analog would do at full size.