GALAXY Science Fiction: July 1977 (Volume 38, Number 5)
Illustrations by Janet Aulisio, Bonnie Dalzell, Stephen Fabian, Freff. Cover #2 by Bonnie Dalzell (for "The Dosadi Experiment.")

Novelette: "Variations in the Visible Spectra of Certain Chepheid Stars" by H. C. Petley.

Stories: "Take My Mate - Please!" by Andrew Ross
"Skitch and the Kids" by William Earls
"Dinsdale Dissents" by Charles Sheffield
"Brother John's Day Out" by William P. Roessner
"A Perfect Twilight" by Daniel Yergin.

Serial: "The Dosadi Experiment" (Part 3 of 4) by Frank Herbert ("Jorg X. McKie" series.)

Feature: "A Step Farther Out: Can Trash Save Us?" by Jerry Pournelle, Ph.D.

Jim Baen is editor, book reviews by Spider Robinson. (There were no January, February or December issues for 1977. I seed the Dec/Jan issue in 1978 with the rest of Volume 39.)