The Martian Way, by Isaac Asimov
Earthman, Come Home, by James Blish
Rogue Moon, by Algis Budrys
The Spectre General, by Theodore Cogswell
The Machine Stops, by E. M. Forster
The Midas Plague, by Frederik Pohl
The Witches of Karres, by James H. Schmitz
E for Effort, by T. L. Sherred
In Hiding, by Wilmar H. Shiras
The Big Front Yard, by Clifford D. Simak
The Moon Moth, by Jack Vance