INDEX 



Amcbba, 33 

 Annelids, 61, 103 

 Apes, anthropoid, 91 

 Appetites, 137 

 AitUropoda, 61 

 Articulata, 61 



Beauty, perception of, 131 



Bible, 341 



Blastosphere, 44 



Brain, 64, 108 ; of insects, 69 ; 



vertebrates, 75, 85 ; man, 96. 



See also Ganglion 



Cell, 34, 36 



Child, mental development of, 



204 

 Christianity, 192, 250, 353 

 Church, 265 

 Circulatory system, worms, 62 ; 



insects, 66 ; vertebrates, 84 

 Classification, 30 

 Coelenterata, 42, 55 

 Conformity to environment, 



150, 170, 177, 197, 348, 259, 



365 

 Conscience, 184 

 Correlation of organs, 384 



Darwinism, 10 



Degeneration, 155, 279 



Digestion, 309 ; amceba, 33 ; 

 hydra, 37 ; worms, 47, 53 ; in- 

 sects, 66 ; vertebrates, 73, 81 



Ear, 50, 64 

 Echinodenns, 57 

 Ectoderm, 37, 44 



Egg, 43 



Embryology, 43 



Emotions, 136, 280, 309 



Entoderm, 37, 44 



Environment, 158, 309 ; God 

 immanent in, 161, 175 ; mir- 

 rored in human mind, 199 



Evolution, 3 ; conservative, 173 



Excretion, amojba, 33 ; worms, 



48, 53 ; vertebrates, 73, 81 



Faith, 309, 356 



Family, 180 ; origin of, Cf. 88, 



178, 317 ; results of, 181 

 Flagellata, 39 



Ganglion, supra - ajsophageal, 



49, 54 ; annelids, 64. See 

 Brain 



Gaslraea. 45 

 Gastrula, 44 

 God, 344 ; knowable, 167 



Head, insect, 68 ; vertebrate, 75 



Heredity, mental and moral, 188 



Heroism, 198, 200, 337 



History, 15 



Hope, 363 



Huxley (quoted), 99, 171, 373 



Hydra, 37 



Insects, 65, 105 

 Instinct, 127, 131 

 Intellect, 117, 124 

 Intelligence, 117 

 Intelligent action, 138, 132 



Jaws, insects, 67 ; vertebrates, 78 



