INTENDED FOR SPEECH THERAPISTS, THEACHERS OF THE MENTALLY RETARDED, AND OTHERS IN SPECIAL EDUCATION, THE COLLECTION CONTAINS REPORTS BY VARIOUS AUTHORS ON SPEECH AND LANGUAGE MODIFICATION ATTEMPTS THAT HAVE UTILIZED OPERANT CONDITIONING PROCEDURES, AS WELL AS SEVERAL PAPERS ON BACKGROUND TOPICS. BACKGROUND PAPERS ON TEACHING TREAT ENVIRONMENTAL CONTROL OF VERBAL BEHAVIOR, TOKEN REINFORCEMENT FOR RETARDED PUPILS, THE OBSERVATION AND RECORDING OF VERBAL BEHAVIOR IN REMEDIAL SPEECH WORK, AND THE BASIC BEHAVIORAL MECHANISM OF IMITATION. REPORTS ON INSTITUTING SPEECH IN SEVERELY IMPAIRED CHILDREN EXPLAIN REMEDIAL TEACHING PROCEDURES, A PROGRAM (INCLUDING READING) FOR NONVERBAL RETARDATES, AND A PROGRAM FOR PSYCHOTIC CHILDREN. ALSO INCLUDED ARE PAPERS ON ECHOLALIC CHILDREN AND AUTOMATISM, APHASIC CHILDREN GIVEN PROGRAMED INSTRUCTION, MUTE PSYCHOTICS TREATED BY REINFORCEMENT AND IMITATION, AND THE APPLICATION OF OPERANT CONDITIONING. REPORTS ON RESEARCH IN ARTICULATION DIFFICULTIES AND STUTTERING CONSIDER THE APPLICATION OF TEACHING MACHINE CONCEPTS, PROGRAMED LEARNING INSTRUCTION IN PHONICS, OPERANT PROCEDURES, AND MANIPULATION OF STUTTERING. ALSO DISCUSSED ARE ISSUES IN BEHAVIOR MANIPULATION AND RESEARCH IMPLICATIONS. THE RESEARCH REPORTS PROVIDE CHARTS, GRAPHS, OR ILLUSTRATIONS, AS WELL AS REFERENCE LISTS. THE BOOK IS INDEXED BY SUBJECT AND AUTHOR. THIS DOCUMENT WAS PUBLISHED BY THE HOUGHTON MIFFLIN COMPANY, BOSTON, MASSACHUSETTS. (JD)