First Published in 1992. Routledge is an imprint of Taylor & Francis, an informa company.

Contents: T. Brown, About the Translation. S. Papert, Preface. With Cl. Monnier, J. Vauclair, Rotations and Circumductions. With D. Voelin-Liambey, I. Berthoud-Papandropoulou, The Composition of Two Cyclic Successions. With A. Moreau, The Rotation of Cubes. With I. Fluckiger, M. Fluckiger, Compositions and Conservation of Lengths. With E. Marti, E. Mayer, The Composition of Differences. With H. Kilcher, J.P. Bronckart, The Sections of a Parallelepiped and a Cube. With C. Bruhlhart, E. Marbach, Correspondences of Kinships. With A. Karmiloff-Smith, A Special Case of Inferential Symmetry: Reading a Road Map Upside Down. With A. Karmiloff-Smith, Conflicts Among Symmetries. With Cl. Voelin, E. Rappe-du-Cher, Correspondences and Causality. With F. Kubli, Equilibrium of Moments in a System of Coaxial Disks. With A. Blanchet, E. Ackermann-Vallad o, Comparison of Two Machines and Their Regulators. G. Henriques, Morphisms and Transformations in the Construction of Invariants. E. Ascher, The Theory of Categories and Genetic Epistemology. General Conclusions.