ASTOUNDING STORIES 20¢ On Sale the First Thursday of Each Month W. M. CLAYTON, Publisher               HARRY BATES, Editor               DR. DOUGLAS M. DOLD, Consulting Editor         The Clayton Standard on a Magazine Guarantees That the stories therein are clean, interesting, vivid, by leading writers of the day and purchased under conditions approved by the Authors' League of America;   That such magazines are manufactured in Union shops by American workmen; That each newsdealer and agent is insured a fair profit; That an intelligent censorship guards their advertising pages. The other Clayton magazines are: ACE-HIGH MAGAZINE, RANCH ROMANCES, COWBOY STORIES, CLUES, FIVE-NOVELS MONTHLY, ALL STAR DETECTIVE STORIES, RANGELAND LOVE STORY MAGAZINE, WESTERN ADVENTURES, and WESTERN LOVE STORIES. More than Two Million Copies Required to Supply the Monthly Demand for Clayton Magazines.   VOL. VI, No. 1                      CONTENTS                       April, 1931   COVER DESIGN H. W. WESSO     Painted in Water-Colors from a Scene in "Monsters of Mars."