Frontmatter -- Acknowledgements -- Contents -- List of Abbreviations -- List of Maps -- List of Tables -- Maps -- 1 Introduction -- 2 Methodology -- 3 Phonology -- 4 Nominals -- 5 Verbs -- 6 Syntax and the clitic complex -- 7 Membership of PA and subgroups -- Appendices -- Appendix 1: Statistical assessment of cognacy -- Appendix 2: Cognates -- Appendix 3: Nominal prefixation -- Appendix 4: Free pronouns and intransitive prefixes -- Appendix 5: Inflected verbal paradigms -- Appendix 6: PA reflexes - Individual languages -- References -- Author Index -- Language Index -- Subject Index