The theme of this book is the concept of a sentence and the role which it plays in child language acquisition. The author argues that the concept of a sentence is innately available to children and is the "main guiding principle in a child's attempt to organize and interpret the linguistic evidence that fluent speakers make available to him."…

This chapter, to be included in "Carmichael's Manual of Child Psychology," edited by P.A. Mussen, deals with the connection between the acquisition of language and the growth of intellect, and the connection between both of these and the process of maturation. The author feels that various theories of development cannot account for the child's…