I-IV -- Contents -- Preface -- Guest editorial: The reliability of speech error data -- Linguistics and language error -- Speech errors: old data in search of new theories -- Syllables and segments in speech production -- Substitutions and splices: a study of sentence blends -- Lexical storage and retrieval: a developing skill? -- The psychological reality of deep and surface phonological representations: evidence from speech errors in Welsh -- Slips of the tongue in the London-Lund corpus of spontaneous conversation -- Review article -- Name index -- Subject index