INDEX 



Afferent and efferent nerve fibres, 

 98 



Amoeba, their instinctive be- 

 haviour, 22 



Amphioxus, its nervous system, 

 100 



Ants, their instinctive behaviour, 



8 5 



Articulate language, 143, 163, 191 

 Association areas of the brain, 

 131, 133, 150, 158, 

 162, 171, 191 

 of human beings, 148 

 their development, 98, 



105, 109, 119, 141 

 of monkeys, 141, 148 

 processes, 158 

 Associative memory, 159 

 Atom and molecules, arrangement 



of elements, 10 

 Auditory sensory organs, 63 

 Automatic action suffices for life 



of lower animals, 94 

 Basal ganglia, their origin, 76, 



82, 98, 103, 104, 115 

 instinctive function of, 104, 



106, 113, 117, 133 

 effect of removal in frogs, 



114, 117 

 effect of removal in dogs, 



133 

 constitute the root and stem 



of cerebrum, 98 

 of birds, 123 

 fish, 114 



human beings, 103, 141 

 influence of training on, 183 

 hereditary nature of, 113 

 relation of to neopallium, 119 

 Birds and their instinctive be- 

 haviour, 123, 124 

 Boy-life and labour, A. Freeman's 



account of, 193 



Brain, development of from ecto- 

 derm in worms, 68 



Brain, development of in crayfish, 



. 77 



its construction, 99, 103 

 Bridgeman, Laura, history of, 151 

 instinctive behaviour of, 152 

 influence of defective sensory 



organs, 155 



Cerebral cortex of birds, 123 

 hemispheres, effect of removal 



in frogs, 117 



effect of removal in dogs, 133 

 impairment of in human 



beings, 141 



in prehistoric man, 143 

 their sulci, 129 



their development in reptiles, 



120 ; in human beings, 139 



Character, depending on action of 



basal ganglia, 78, 82, 104, 133 



influence of neopallium on, 133 



environment on, 200 

 Children and effective training, 



186, 197 



their hereditary instincts, de- 

 velopment of, 188 

 freedom of action, importance 



of, 189 



Chlorophyll, 16 

 Cnidocils, 36 



Conservation of energy, 13 

 Corpus striatum,its functions, 10371 

 Darwin, on origin of species, 205 

 Sir Francis, on mnemic im- 

 pressions, 26 

 Duckbills' sensory impressions, 



128 

 Education (see Preface) 



of instinctive processes, 177 

 of intellectual processes, 158, 



162, 164 

 depends on training of basic 



cerebral substance, 176 

 of animals, 182 



applied to human beings, 

 184 



