This collection of articles is one of a series of semiannual reports on the status of speech research at Haskins' Laboratories. The titles of the 18 articles and their authors are as follows: "The Alphabetic Principle and Learning to Read" (Isabelle Y. Liberman and others); "Language Development from an Evolutionary Perspective" (Michael Studdert-Kennedy); "Phonemic Segmentation as Epiphenomenon: Evidence from the History of Alphabetic Writing" (Alice Faber); "Phonemic Similarity Effects and Prelexical Phonology" (Georgije Lukatela and M.T. Turvey); "Automatic and Prelexical Computation of Phonology in Visual Word Identification" (Lukatela and Turvey); "Phonological Ambiguity and Lexical Ambiguity: Effects on Visual and Auditory Word Recognition" (Ram Frost and others);"Morphological Relationships Revealed through the Repetition Priming Task" (Laurie Beth Feldman); "Listener-Talker Attunements in Speech" (Carol A. Fowler); "An Electropalatographic and Acoustic Study of Consonant-to-Vowel Coarticulation" (Daniel Recasens); "Coarticulation is Largely Planned" (D. H. Whalen); "The Perceptual Effects of Child-Adult Differences in Fricative-Vowel Coarticulation" (Susan Nittrouer and D. H. Whalen); "'Targetless' Schwa: An Articulatory Analysis" (Catherine P. Browman and Louis Goldstein); "Methods for Least-Squares Parameter Identification for Articulatory Movement and the Program PARFIT" (Richard S. McGowan and others); "'Clock' and 'Motor' Components in Absolute Coordination of Rhythmic Movements" (M. T. Turvey and others); "An Analogy between the Mucosal Waves of the Vocal Folds and the Wind Waves on Water" (Richard S. McGowan); "Laryngeal Control of the Plosives of Standard Thai" (Arthur S. Abramson); "Distinctive Vowel Length: Duration vs. Spectrum in Thai" (Arthur S. Abramson and Nianqi Ren); and "Effects of Preceding Context on the Voice-Onset-Time Category Boundary" (Bruno H. Repp and Hwei-Bing Lin). A list of DTIC and ERIC numbers is appended. (SR)