Four papers are included in this document concerning the structure of linguistic input to children. Dan Slobin's paper, "Questions of Language Development in Cross-Cultural Perspective," suggests that children everywhere acquire basic grammatical competence in the first five or six years of life, regardless of social milieu or linguistic structure. Each child is equipped with a basic strictly linguistic competence which can be differentially shaped to carry out a variety of sociolinguistic functions. "Some Suggestions for a Syntactic Characterization of Baby-Talk Style," by Carol Pfuderer examines whether or not some overall, empirically-observable type of syntactic simplicity can be said to exist in the baby-talk style of English. "The Language of the Parent: A Pilot Study," by Kerry Drach, raises the question as to whether or not parental linguistic input to the child really represents a random sampling of adult speech in general, and Ben Kobashigawa's paper "Repetitions in a Mother's Speech to her Child," deals descriptively with some of the linguistic properties of a mother's use of repetition to her 26-month old son and some incidental phenomena associated with her use of repetition. (CLK)