CONTENTS: ~ ~ SERIAL: . . Hominids (Conclusion) [Robert J. Sawyer]; NOVELETTE: . . Sea Changes [Amy Bechtel]; SHORT STORIES: . . Our Man in Pluvia [Charles L. Harness]; . . Chum [Jerry Oltion]; . . The Diamond Drill [Charles Sheffield]; . . History of Chan's Journey [Richard Foss]; ARTICLES: . . Galactic Society [Robert Zubin]; . . The Throwaway Mentality [Stanley Schmidt]; . . Big Bang or Big Clap? [John G. Cramer]