16 CONTENTS. 



CHAPTER X. 



ARCHITECTURE (CONTINUED) : PERIPHERAL NERVES, 



CENTRAL CELLS, CEREBRAL CORTEX 192 



Cranial nerves Dorsal and ventral plates of the 

 medullary tube Fissuration Measurements Area of 

 cortex Thickness of cortex. 



CHAPTER XI. 

 ARRANGEMENT OF STRUCTURAL ELEMENTS 209 



Arrangement of spinal nerve roots Meynert's scheme 

 Finer anatomy Size of nerve elements As related 

 to the size of animal Mass of the cell Mass of the 

 nucleus Innervation of the frog's leg Gaule's observa- 

 tions on numerical relations Connection of nerve 

 elements with one another Course of nerve impulse 

 Complexity of central system Variations in com- 

 plexity. 



CHAPTER XII. 

 ARCHITECTURAL CHANGES DUE TO GROWTH 230 



Cause of changes during growth Size and organisation 

 not necessarily connected Polarity of cells Signifi- 

 cance of neuron Meaning of medullation Formation of 

 gyri Medullation in cerebellum Growth of cerebellar 

 cortex Development of human cortex Source of cells 

 in developed cerebral cortex Observations by Vulpius 

 Observations by Kaes. 



CHAPTER XIII. 

 LOCALISATION OF FUNCTION 240 



Connections of the central system Segmental arrange- 

 ment Localisation Multiple innervation Crossed 

 connections Relative importance of cerebral centres 

 Difficulty in the way of a general interpretation Path- 

 way of fibres Cortical areas Motor areas Arrange- 

 ment in man Character of movements Nature of 

 cortical control Latent areas Modification of cortical 

 discharge Refinement of control Afferent impulses 

 affecting development Pyramidal tracts Sensory 

 centres Multiple representation Crossed control 

 Secondary pathways Problem of the unused hemi- 

 sphere. 



