Part 1 Dialectic; Part I The Discovery of Dialectic; Chapter 1 Introductory; Chapter 2 Traits of Controversy; Chapter 3 Specimens of Human Discourse; Part II The Description of Dialectic; Chapter 1a The Empirical Description: Language; Chapter 2a The Logical Description; Chapter 3a The Metaphysical Description; Part III The Interpretation of Dialectic; Chapter 1b Philosophy and Science; Chapter 2b The Subject-matter of a Summa Dialectica; Chapter 3b The Dialectical Attitude;