INSTINCT, INTELLIGENCE AND CHARACTER By Godfrey H. Thomson PREFACE THE leisure and incentive to prepare for the press the lectures which form this book I owe to an invitation from Dean Russell of Teachers College, Columbia University, New York City, to spend the session there as Visiting Professor of Education. To him, and to Dr. E. L. Thorndike, at whose suggestion the invitation was extended to me, I owe a debt which I am glad to acknowledge and no less to Sir Theodore Morison and the Council of Armstrong College in Newcastle for acquiescence in the necessary leave of absence, made possible by the great kindness of my predecessor and old friend, Mark B Wright, in emerging from his retirement to take up for another year his former duties The lectures were three times delivered, in the winter, spring, and summer semesters, .and are here printed sub stantially as given on the last occasion. Any merits they may have they owe to my audiences, for from a class ranging in age from nineteen to fiftyfive years, possessed of teaching experience of every conceivable sort, and gathered not only from every State of the Union, but from every continent, the teacher could not fail to learn, whatever they may have learned from him. And to them, to I dedicate the present volume. CONTENTS PREFACE TALE ON INSTINCTS AND HABITS THE LAWS OF HEREDITY NSTINCTS IN MAN FLAY HE LEARNING PROCESS THE NERVOUS SYSTEM MAT18 EXPERIMENTS THE NATURE OF SATISFACTION AND DISSATISFACTION THE ASCENT FROM INSTINCT TO INTELLIGENCE: IMAGERY VARIOUS USES OF VISUAL IMAGERY BRAIN LOCALIZATION THE ASCENT FROM INSTINCT TO INTELLIGENCE : THE USE OF WOBDS IN THOUGHT MATHEMATICAL AND OTHEE SYMBOLS THE TRANSFER OF TRAINING INTRUSTS DEPRESSION AND SUBLIMATION INDIVIDUAL DIFFERENCES IN INTELLECT INTELLIGENCE TESTS GENERAL AND SPECIAL ABILITIES THE INFLUENCE OP SCHOOLING ON INTELLIGENCE AND THE LIMIT OF ITS GROWTH BACK TO THE LEARNING PROCESS.THE BEST METHODS OF ACQUIRING SKILL THE WINGS OF THOUGHT