Analog Science Fiction - Science Fact April 1973 (Volume 91, Number 2)
Illustrations by Kelly Freas, Laurence MacCaskill, Vincent Di Fate, Leo R. Summers, John Schoenherr. Cover by Kelly Freas (for "Earthquake")

Novelette: "Earthquake" by William E. Cochrane (a.k.a. "S. Kye Boult.")

Stories: "Moon Rocks" by Tom Purdom
"Not Polluted Enough" by G. H. Scithers
"Polimander's Man-Thing" by Pat de Graw.

Serial: "The People of the Wind" (conclusion) by by Poul Anderson (Hugo & Nebula nominee; "Ythri/Polesotechnic League" series.)

Science: "Paraphysics and Parapsychology" by James Benjamin Beal.

Editorial by Ben Bova: "WellfareFarewell." Book reviews by P. Schuyler Miller.