The contents of this book are organized in three main sections: Part 1, "Beginnings," includes three papers: "Some sociological determinants of perception,""A public language: some sociological implications of a linguistic form," and "Language and social class." Part 2, "Developments," includes four papers: "A review of 'The Lore and Language of Schoolchildren',""Linguistic codes, hesitation phenomena and intelligence,""Social class, linguistic codes and grammatical elements," and "A socio-linguistic approach to social learning." Part 3, "Explorations," includes four papers: "A socio-linguistic approach to socialization: with some reference to educability,""Social class, language and socialization,""A critique of the compensatory education," and, "On the classification and framing of educational knowledge." (JM)