Research supported by a U.S. Public Health Service Research Grant from the National Institute of Mental Health. (DD)

Data on the complexity of relative clause formation in children indicate that right embedding precedes central embedding in development. Previous research on the subject argues that configurations where coreferential NP's function as subjects are less complex than configurations where coreferential NP's function as objects. It appears that the…

This paper examines and criticizes Lakoff's notions of a natural logic and of a generative semantics described in terms of logic. The author argues that the relationship of these notions to logic as normally understood is unclear but suggests a number of possible interpretations of the thesis of generative semantics. Further, on these…

The question is addressed whether a child would develop a communication system if a conventional linguistic model is absent. Six congenitally deaf children, who were not exposed to Sign Language, were observed and videotaped at play in their homes at intervals of one to three months. The children ranged in age from 1 year, 5 months to 4 years, 1…