The subtitle of this volume is exact, for Leo Szilard's work ranged from physics to biology; he crossed over with ease from the world of neutrons to that of neurons, from the nuclei of atoms to the nuclei of cells. At a deeper level, all of these research activities converge, unified as they are by Szilard's interest in the fundamental ideas of order and organization that underlie them all. It is no accident, as Jacques Monod notes in this foreword,...