The great automatic grammatizor - need anything be innate?; animals that try to talk - is language restricted to humans?; Grandmama's teeth - is there biological evidence for innate language capacity?; predestinate grooves - is there a pre-ordained language "programme"?; the blueprint in the brain - what grammatical information might conceivably be innate?; chattering children - are chattering children following "rules" when they learn to speak?; puzzling it out - exactly how do children learn language?; celestial unintelligibility - why propose a transformational grammar?; the white elephant problem - do we need a transformational grammar in order to speak?; the case of the missing fingerprint - how do we understand speech?; the Cheshire Cat's grin - how do we plan and produce speech?; banker's clerk or hippopotamus? - the future of psycholinguistics.