This volume presents a collection of papers on the enticing and complex theme of Ergativity. The papers exemplify theoretical depth applied to a wide range of languages, with the majority of papers based on original fieldwork. Ergativity refers to a grammatical pattern in which the logical subject of intransitive clauses and the logical object of transitive clauses share some grammatical features, and in this respect differ from transitive subjects. The shared features are often case and/or agreement, but a variety of other relevant features have also been isolated in the literature. The...