Preface to the First 1884 German Edition -- Preface to the Fourth 1891 German Edition -- I. Prehistoric Stages of Culture -- 1. Savagery -- 2. Barbarism -- II. The Family -- III. The Iroquois Gens -- IV. The Grecian Gens -- V. The Emergence of the Athenian State -- VI. The Gens and the State in Rome -- VII. The Gens among the Celts and Germans -- VIII. The Formation of the State among the Germans -- IX. Barbarism and Civilisation.