Quadratic is a collection of four science fiction works by Olaf Stapledon and Murray Leinster. It was edited by William L. Crawford and published in 1953 by Fantasy Publishing Company, Inc. in an edition of 300 copies. The book is an omnibus of Stapledon's Worlds of Wonder and Leinster's Murder Madness, created by combining unbound sheets from the publisher's previous editions of the two volumes."Recommended Reading," F&SF, June 1953, p.71
Contents Death into Life, by Olaf Stapledon The Flames, by Olaf Stapledon Old Man in a New World, by Olaf Stapledon Murder Madness, by Murray Leinster
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