| Preface |
| Preface to the American Edition |
| Translator's Note |
| Introduction |
| Part I. Implicit Group-Theoretic Ways of Thinking in Geometry and Number Theory |
| 1. Divergence of the different tendencies inherent in the evolution of geometry during the first half of the nineteenth century |
| 2. The search for ordering principles in geometry through the study of geometric relations (geometrische Verwandtschaften) |
| 3. Implicit group theory in the domain of number theory: The theory of forms and the first axiomatization of the implicit group concept |
| Part II. Evolution of the Concept of a Group as a Permutation Group |
| 1. Discovery of the connection between the theory of solvability of algebraic equations and the theory of permutations |
| 2. Perfecting the theory of permutations |
| 3. The group-theoretic formulation of the problem of solvability of algebraic equations |
| 4. The evolution of the permutation-theoretic group concept |
| 5. The theory of permutation groups as an independent and far-reaching area of investigation |
| Part III. Transition of the Concept of a Transformation Group and the Development of the Abstract Group Concept |
| 1. The theory of invariants as a classification tool in geometry |
| 2. Group-theoretic classification of geometry: The Erlangen Program of 1872 |
| 3. Groups of geometric motions; Classification of transformation groups |
| 4. The shaping and axiomatization of the abstract group concept |
| Epilogue |
| Notes |
| Bibliography |
| Name Index |
| Subject Index |