April 1967. Cover by Chaffe, illustrating the story "You Men of Violence" by Harry Harrison. ALSO:<br/> "Thunderhead" by Keith Laumer; "The Purpose of Life" 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; "Ballenger's People" by Kris Neville.<br/><br/> FEATURES: Making Models (editorial) by Frederik Pohl; Galaxy Bookshelf by Algis Budrys; "For Your Information: The Orbits of the Comets" by Willy Ley. Illustrated by Morrow and Gaughan.<br/><br/>Editor: Frederik Pohl.