LIST OF ILLUSTRATIONS. FIG. 1.-DIAGRAM OF A SECTION OF THE CEREBRAL CORTEX FIG. 2.-CORTICAL CELL OF THE DEEPER ZONES FIG. 3.-DIAGRAM OF COMMISSURAL FIBRES OF THE ANTERIOR FIG. 4.-DIAGRAM OF COMMISSURAL FIBRES ON THE LEVEL OF THE CORPUS STRIATUM FIG. 5.-DIAGRAM OF CONVERGING FIBRES, AND THEIR RELATIONS WITH THE CENTRAL GREY GANGLIONS FIG. 6.-DIAGRAM OF THE SENSORI-MOTOR PROCESSES OF CEREBRAL ACTIVITY PAGE 15 19 27 29 31 61 THE BRAIN. PART I ANATOMY OF THE BRAIN. CHAPTER I. METHODS OF STUDY. THE study of the nervous centres has always strongly attracted the anatomist as a field of labour; and the reason of this is not far to seek. In the face of such a subject, not only does the very natural desire to penetrate the inmost secrets of the organization of the anatomical details under consideration come into play, but, further, there is that unconscious attraction which draws the human mind towards the unexplored regions of the unknown-towards those mysterious realms where the living forces of all our mental activities are silently elaborated, and where the solution of those eternal problems, regarding the relations of the physical organization of the living being to the acts of its psychic and intellectual life, evades us as we pursue it. |