GALAXY Science Fiction: June 1975 (Volume 36, Number 5)
Illustrations by Freff, Jack Gaughan, Wendy Pine. Cover by Wendy Pini (for "The Eternity Engine.")

Novelettes: "The Eternity Engine" by Jack Williamson (incorporated into The Power of Blackness)
"The Venging" by Greg Bear.

Stories: "Elephant With Wooden Leg" by John Sladek
"Let Darkness Fall" by Greg Hartman
"The Yidam" by Herbie Brennan.

Serial: "Helium" (part 2 of 3) by Arsen Darnay (book title was A Hostage for Hinterland.)

Science: "A Step Farther Out: The New Faces of Big Science" by Jerry Pournelle, Ph.D.

Jim Baen is editor, book reviews by Spider Robinson(!)