In the Bone
Gordon R. Dickson
The Iron Thorn
Algis Budrys
Like Banquo's Ghost
Larry Niven
The Mother Ship
James Tiptree, Jr.
The Mathenauts
Norman Kagan
Meeting on Kangshan
Eric Frank Russell
Moon Duel
Fritz Leiber
The Moon Is a Harsh Mistress
Robert A. Heinlein
Nine Hundred Grandmothers
R. A. Lafferty
Origin of Species
Robert F. Young