14 LIST OF ILLUSTRATIONS. 



FHJ. PAOE 



17. VARIATIONS IN BRAIN-WEIGHT DURING THE FIRST 



TWENTY- 1 -TVE YEARS OF LIKE (CURVE BASED ON 



TABLE 17, H. VIERORDT) 105 



1 8. CHANGES IN LENGTH AND BREADTH OF HEAD BETWEEN 



FIVE AND TWENTY-ONE YEARS (WEST) 112 



19. GROUP OF HUMAN NI-.RYE CELLS (MODIFIED FROM 



WALLER) 142 



20. LARGE CELL FROM VENTRAL HORN OF THE SPINAL 



CORD (OBERSTEINER) 143 



21. ILLUSTRATING PHYLOGENETIC AND ONTOGENETIC DE- 



VELOPMENT OF CELL OUTGROWTHS (RAMON Y CAJAL) 1 46 



22. SPINAL GANGLION OF AN EMBRYO DUCK (VAN 



GEHUCHTEN) 147 



23. DINEURIC CHANGING INTO MONONEURIC CELLS (VAN 



GEHUCHTEN) 149 



24. DEVELOPING MEDULLARY TUBE (HIS) 151 



25. NERVE FIBRES (MODIFIED FROM VAN GEHUCHTEN) ,.. 154 



26. A CENTRAL CELL (RAMON Y CAJAL) 155 



27. CUBES ILLUSTRATING VOLUME OF THE CENTRAL 



SYSTEM AT DIFFERENT AGES l6l 



28. DEFORMED SKULLS (TOPINARD-AMBIALET) 178 



29. DEFORMED SKULLS (TOPINARD) J 79 



30. LEFT CEREBRAL HEMISPHERE DIVIDED INTO LOBES 



ACCORDING TO THE METHOD OF BROCA 182 



31. ILLUSTRATING THE DECUSSATION AMONG THE CRANIAL 



NERVES l86 



32. CURVES REPRESENTING THE AREAS OF THE DIFFERENT 



PORTIONS OF THE SPINAL CORD 189 



33. AREAS OF THE SENSORY AND MOTOR NERVES ALONG 



THE ENTIRE CENTRAL AXIS (CURVES FOR THE 

 SPINAL NERVES BASED ON FIGURES BY STILLING) 193 



34. CROSS - SECTION IN THE CERVICAL REGION OF A 



DEVELOPING HUMAN SPINAL CORD (KOLLIKER) ... 194 



35. SCHEMA EXHIBITING THE PARTS OF THE ENCEPHALON 



DERIVED RESPECTIVELY FROM THE DORSAL AND 

 VENTRAL PLATES (MINOT) 195 



36. LATERAL VIEW OF A HUMAN HEMISPHERE SHOWING 



FISSURES (EBERSTALLER) 198 



37. MESAL VIEW OF THE HUMAN HEMISPHERE SHOWING 



FISSURES (QUAIN'S "ANATOMY") 199 



38. DIAGRAM ILLUSTRATING EXTENT OF THE CEREBRAL 



CORTEX 205 



39. DIAGRAM ILLUSTRATING THE THICKNESS OF A HUMAN 



CEREBRAL CORTEX (DONALDSON) 207 



40. CROSS-SECTION OF THE SPINAL CORD OF A CHICK 



(VAN GEHUCHTEN) 2IO 



41. SCHEMA OF THE ARRANGEMENT OF THE PRINCIPAL 



MASSES OF GREY MATTER IN THE CENTRAL 

 SYSTEM (BASED ON MEYNERT) 212 



