Galaxy Science Fiction April 1967 - Vol. 25, #4 Author:Harry Harrison, Keith Laumer, Christopher Anvil, Piers Anthony, Kris Neville Vol. 25, No. 4. Cover by Chaffe for "You Men of Violence" by Harry Harrison. Includes "Thunderhead" (novelette) by Keith Laumer; "The Purpose of Life" (novelette) by Hayden Howard; "Fair Test" by Robin Scott; "The New Member" by Christopher Anvil; "The Young Priests of Adytum 199" by James McKimmey; "Within the Cloud" by Piers Anthony; "Ballenge... more »r's People" by Kris Neville; "For Your Information: The Orbits of the Comets" by Willy Ley. Illustrated by Morrow and Gaughan.« less