Contents -- Preface -- Abbreviations -- List of Tables, Maps and Figures -- Chapter 1 By Way of Introduction -- Part 1 Language Ecology -- Chapter 2 Language Ecology and Linguistic Diversity on the African Continent -- 2.1 The Genetic Classification of African Languages: A Brief State of the Art -- 2.2 Accretion Zones, Spread Zones, and Their Ecological Bases -- 2.3 Esoterogeny, Metatypy and Other Miracles of Language Contact -- Chapter 3 Accretion Zones and the Absence of Language Union in the Nuba Mountains -- 3.1 Genetic Diversity -- 3.2 Typological Diversity -- 3.2.1 Phonology -- 3.2.2 Lexical Diffusion -- 3.2.3 Morphological Diversity -- 3.2.4 Clause Structure -- 3.3 A Natural Refugium Zone -- Chapter 4 Esoterogeny and Localist Strategies in a Nuba Mountain Community -- 4.1 Introduction -- 4.2 Internal Variation in Tima and the "Apparent-time" Approach -- 4.3 An Initial Comparison with Katla -- 4.4 Metatypy, Esoterogeny, or Neither? -- 4.5 Localist Strategies -- Part 2 Language and Co-Evolution -- Chapter 5 Some Observations on Evolutionary Concepts in Current Linguistics -- 5.1 Evolutionary Concepts and the Study of Language: Some Earlier Attempts -- 5.2 A Closer Look at the Brown and Witkowski Hypothesis -- 5.2.1 The Historical-Comparative Evidence and Counter-Evidence -- 5.2.2 The Empirical Basis: Synchronic Evidence and Counterevidence -- 5.3 An Alternative Account: Language and Cognition -- 5.4 Conclusions and Prospects -- Chapter 6 Studying Lexical-Semantic Fields in Languages: Nature Versus Nurture, or Where Does Culture Come into It These Days? -- 6.1 Investigating the Interaction between Language and Cognition: Research on Colour Terminology -- 6.2 Language Typology and the Study of Language Universals -- 6.3 The Berlin and Kay Framework -- 6.4 Some Problems with the Berlin and Kay Model.

6.5 Extending the Greenbergian Framework to Other Lexical Domains -- 6.6 The Expression of Space and Direction in a Cross-Linguistic Perspective -- 6.7 The Problem of the "Radical Translator" -- 6.8 Implicational Scales and Historical Reconstruction -- 6.9 Some New Evidence for Linguistic Relativity? -- 6.10 Some Final Observations -- Chapter 7 Lexical-Semantic Fields in Tima -- 7.1 Introduction -- 7.2 Bio-nomenclature -- 7.3 Colour -- 7.4 Shape and Texture -- 7.5 Taste -- 7.6 Body Parts -- Part 3 Conversational Styles -- Chapter 8 Colourful PSI's Sleep Furiously: Depicting Emotional States in Some African Languages -- 8.1 Introduction -- 8.2 Categories and Event Structures -- 8.3 A Closer Look at Two African Language Families: Nilotic and Bantu -- 8.4 Interpreting Colourful PSI's -- 8.5 On PSI's and FTA's -- Chapter 9 Perception of the Living Dead and the Invisible Hand in Teso-Turkana -- 9.1 Introduction -- 9.2 Invisible Forces in Teso-Turkana -- 9.3 Perception of the Invisible Hand -- 9.4 A Note on Perception Verbs in a Nilotic Context -- Chapter 10 Conversational Styles in Tima -- 10.1 Introduction -- 10.2 Ideophones -- 10.3 Emotional States -- 10.4 Exoteric and Esoteric Languages -- References -- Language Index -- Subject Index.