The definitive edition of one of the most important scientific books of the twentieth century, setting out the conceptual structure underlying evolutionary biology.This classic work by Julian Huxley, first published in 1942, captured and synthesized all that was then known about evolutionary biology and gave a name to the Modern Synthesis, the conceptual structure underlying the field for most of the twentieth century. Many considered Huxley''s book a popularization of the ideas then emerging in evolutionary biology, but in fact Evolution: The Modern Synthesis is a work of serious scholarship that is also accessible to the general educated public. It is a book in the intellectual tradition of Charles Darwin and Thomas Henry Huxley—Julian Huxley''s grandfather, known for his energetic championing of Darwin''s ideas. A contemporary reviewer called Evolution: The Modern Synthesis“the outstanding evolutionary treatise of the decade, perhaps the century.&