"This is among the most important books on developmental theory published in the last several decades. It continues to be cited regularly in work from several different disciplines, including developmental biology, evolutionary biology, neuroscience, and psychology."--Robert Lickliter, Virginia Polytechnic Institute

Foreword / Richard Lewontin
Preface to Second Edition
Preface
Introduction
The Origin and Transmission of Form: The Gene as the Vehicle of Constancy
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The Problem of Change
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Variability and Ontogenetic Differentiation
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Variations on a Theme: Cognitive Metaphors and the Homunculoid Gene
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The Ghosts in the Ghost-in-the-Machine Machine
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The Ontogeny of Information
Reprise
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Prospects
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Afterword to Second Edition
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Notes
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References
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Index of Names
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Index of Subject