372 



INDEX: OK SUBJECTS. 



CELLS, 22 ; nerve cell, 141; 

 neuroblast, 152; number in 

 man, 24 ; nutrition, 25 ; ovum, 

 22 ; regeneration, 31 - 32 ; 

 segmentation, 23 ; speciali- 

 sation, 25, 32 ; structure, 

 27 



Central nervous system : archi- 

 tecture, 90, 210-213 ; in 

 animals, 174 ; asymmetry, 

 184-186; causes of variation, 

 183 ; decussation, 187, 188 ; 

 deformed skulls, 177-181 ; 

 dependence, 283 ; develop- 

 ment, 337, 338 ; diffusionof 

 impulses, 289 ; divisions of 

 medullary tube, 194, 195 ; 

 elements, 342 ; exercise as 

 related to growth, 361 ; ex- 

 plosions within, 350 ; homo- 

 logies of, 195 ; hyperplasia, 

 74;" knee-kick, 285-288; 

 mass of cord and encephalon, 

 190, 191 ; methods of enlarge- 

 ment, 171 ; minimal stimuli, 

 292 ; precocity, 336 : per- 

 centage of water, 92 ; pro- 

 portional weight, 87 ; pro- 

 portion of grey matter, 169 ; 

 proportion of non - nervous 

 structures, 151, 171 ; pro- 

 portion of white matter, 170 ; 

 according to race, 172; re- 

 generation, 170; responsive- 

 ness, 284 - 288 ; segments, 

 188-189; sense-organs, 341 ; 

 sex, 173 ; shape of head, 

 176 177; stature, 172; sym- 

 metry, 183 ; variability, 344 ; 

 volume at different ages, 159- 

 161 



Cerebellum : medullation, 236 ; 

 cortical growth, 237 



Cerebral cortex : area, 202-205 ; 

 cells, 258 ; growth, 237-239, 

 241, 248 ; medullation, 241, 

 248 ; old age, 328 ; organisa- 

 tion, 355 ; source of cells, 240; 

 specific gravity, 94; thick- 

 ness, 206-208 ; weight, 202- 

 205 



Cerebrum: divisions, 182 ; for- 

 mation of gyri, 235 ; gyri, 

 197-201 ; relative value of 

 hemispheres, 275-276 



Civilisation, 359, 360 



Correlation of nervous with 



mental action, 358-359 

 I Cranial capacity, 114, 115; 

 relation to brain weight, 118 ; 

 of eminent men, 131 ; of 

 murderers, 131 



Cytoplasm, 31 



DEVELOPMENT, 37 

 Drugs, 297, 298 

 Dwarfs, 120 



EDUCATION, 336 ; anatomical 

 limitations, 342-344 ; back- 

 ground, 356 : objects, 356, 

 357 ; of the race, 361 ; ac- 

 cording to sex, 351-352 ; sig- 

 nificance of, 364, 365 ; un- 

 usual individuals, 364 



Eminence, age of, 354 



Encephalon : definition, 89 ; 

 subdivisions, 89 (see Brain) 



Energy expended, 309, 310 



Energy stored, 64 



Environment, 38 



Evolution, 28 

 I Exercise, 312 



