ABSTRACT
In Part I of the book I traced the child's acquisition of the capacity to use words in a referential-symbolic way in conformity with societal usages. In Part III examined the child's acquisition of the next level of linguistic symbolism: syntax. In this part I analyze a still more advanced aspect of language, morphology (e.g., the use of the plural and the past tense). I also trace in this part the development of the capacity to perceive and to articulate the sounds of speech.
