1 The Neural Basis of Thought PROLOGUE; Chapter 1 THE EVOLUTION OF THE MIND; Chapter 2 THE ORGANIC GROWTH OF THE CONCEPT; Chapter 3 MEANING AND ERROR; Chapter 4 THE NEURAL SUB-STRATA OF REFLECTIVE THOUGHT; Chapter 5 THE THALAMO-CORTICAL CIRCULATION OF NEURAL IMPULSE; Chapter 6 THE THALAMO-CORTICAL CIRCULATION OF NEURAL IMPULSE AND THE PSYCHO-NEUROSES