THIS BOOK ABOUT THE FUNCTIONS OF LANGUAGE IN HUMAN LIFE EMPHASIZES LEARNING HOW TO CLASSIFY, DEFINE, AND ANALYZE. FOLLOWING AN EXPLANATION OF THE PHYSIOLOGICAL AND PSYCHOLOGICAL ROOTS OF LANGUAGE, CHAPTERS ON ANALYSIS, MEANING, SIGNS, AMBIGUITY, SEMANTIC GROWTH, AND METAPHOR LEAD TO A DESCRIPTION OF THE COMMUNICATIVE FUNCTION OF LANGUAGE, INVOLVING THE PSYCHOLOGY OF QUALIFICATION AND THE THEORY AND PRACTICE OF DEFINITION. CHAPTERS ON SYMBOLIC TOOLS OF LANGUAGE, CHANCE, PROBLEM-SOLVING, AND EXPOSITION CONSIDER ANOTHER FUNCTION OF LANGUAGE--REASONING. METAPHOR IS STRESSED THROUGHOUT THE BOOK AS "THE MOST VITAL AND VERSATILE OF SYMBOLIC OPERATIONS." THE FINAL TWO CHAPTERS ARE CONCERNED WITH THE AFFECTIVE FUNCTION OF LANGUAGE--HOW LANGUAGE SERVES EMOTIONS AND HELPS MAN ADJUST TO LIFE SITUATIONS, EITHER BY AN ESCAPE FROM REALITY OR THROUGH THE NOBLEST FUNCTION OF LANGUAGE, AN ACCEPTANCE OF REALITY. THIS BOOK IS PUBLISHED BY THE STANFORD UNIVERSITY PRESS, STANFORD, CALIFORNIA, $5.00. (A WORKBOOK DESIGNED TO ACCOMPANY THIS BOOK IS PUBLISHED BY PACIFIC BOOKS, P.O. BOX 558, PALO ALTO, CALIF.) (LK)