Language structure in its human context : new directions for the language sciences in the twenty-first century / William Croft -- The psychology of linguistic form / Lee Osterhout, Richard A. Wright, and Mark D. Allen -- The structure of meaning / James Pustejovsky -- Social practices of speech and writing / Florian Coulmas -- Explaining language : neuroscience, genetics, and evolution / Lyle Jenkins -- Acquisition of language / Barbara Lust -- Elaborating speech and writing : verbal art / Patrick Colm Hogan -- Entries.