INDEX 



465 



Entomostraca, 249 

 Environment, 431 

 Eoanthropus dawsoni, 360 

 Epeira diademata, 132 

 Ephemeridae, 112 

 Epiblast, 314 

 Epigenesis, 366 

 Epithelial tissue, 197 

 Equation division, 309 

 Ermine, 394 

 Espinas, 93, 96, 99 

 Euplectella, 226, 355 

 Euryptericls, 348 

 Euspongia, 226 



Eustachian tube, 211, 213, 266 

 Evolution, 338-431 



evidences of, 338-45 



of evolution theories, 411-31 



in the old sense, 306 



of sex, 301 



of social life, 93 



- theories of, 411-32 

 Evolution-idea, 338 

 Evolution-theorv after Darwin, 



426 



Evolutionist philosophers, 414 

 Excretion, 152 



Exercise, influence of, on rat, 383 

 Experimental indeterminism, 



176 



Extinct types, 346 

 Extinction of types, 348 

 Extracellular digestion, 147 

 Eye, Cyclopean, 404 



- pineal, 282 



Eyes of deep-sea cuttlefish, 263 



of goldfish in darkness, 396 



Fabre, 114, 127, 169 

 Factors, 370, 403 

 Family life, 96 

 Fang of snake, 285 

 Fatty food, 150 

 Feather, structure of, 288 

 Feathers of wing, 136 

 Feather-star, 245 

 Feigning death, 69 

 Female and male, 301 

 pro-nucleus, 309 



31 



Ferments, 147 

 Fertilisation, 309, 310, 311 



- in spiders, 257 

 Fiddler-crab, 106 

 Field-mice or voles, 29 

 Filaria sanguinis hominis, 238 

 Filial regression, 380 



Fins, 272 

 Fire-flame, 270 

 First organisms, 351 

 Fishes, 272 



colour of, 275 

 Fish-lice, 251 

 Fiske, 361 

 Flagella, 141, 220 

 Flat-fishes, 397 

 Flat-worms, 233 



Flight, adaptations to, 217 



- of birds, 135 

 -of heron, 133 



Flounders, 397 

 Flowers and insects, 28 

 Flukes, 233 

 Flustra, 242 

 Flying animals, 146 



- dragon, 282, 348 

 Food of molluscs, 261 



Foot of molluscs, 259, 262, 



263 

 Foraminifera, 174, 223 



- behaviour of, 178 

 Forbes, Edward, 69 

 Forel, 86 

 Formica, 87 

 Fortuitousness, 430 

 Foster, Sir Michael, 138, 180 

 Fratercula arctica, 395 

 Freshwater animals, 6, 336 



medusoid, 230 

 -mussels, 260, 264 



snails, 260 

 Friar-birds, 64 

 Frog, 277 



coloration of, 60 



croaking of, 103 

 Function, 431 

 Functions of the blood, 155 



of the body, 138-57 



- of the liver, 147 

 Fundulus, 50, 396, 404 



