456 



GENERAL ZOOLOGY 



Ecology, 441 



Ectoderm, 136 



Ectoplasm, 289 



Edentata, 415 



Edentates, 439 



Eel, 324 



Egg, 11, 127, 133, 318, 339, 354, 375, 413 



Egg capsule, 247 



Egrets, 383 



Eigenmann, Professor, on blind 



crayfishes, 155 

 Elasmobranchii, 321 

 Electric-light bug, 42 

 Elephants, 418 

 Elimination of unfit, 183 

 Elk, 433 

 Elytra, 43, 53 

 Embryo, 133-134, 151 

 Embryology, 127 

 Emus, 377 



Endocrine glands, 127 

 Endoderm, 136 

 Endoplasm, 289 

 Endopodite, 150 

 Energy, forms of, 122 ; potential, 123 ; 



kinetic, 123 

 Entomology, 95 

 Enzymes, 118 

 Eohippus, 434 

 Ephemerida, 29 

 Epiglottis, 408 

 Epipharynx, 6 

 Erosion theory, 281 

 Ethiopian realm, 116 

 Euglena, 291 

 European corn borer, 67 

 Evolution, 173; study of, 188 

 Excretion, 10, 124, 125 

 Existence, struggle for, 183 

 Exopodite, 150 

 Exoskeleton, 95 



Facet, 2 



Family, 109 



Fangs, 357 ■ 



Fat bodies, 339 



Fats, 118, 129 



Fatty acid, 119 



Fauna, 116; abysmal, 330; littoral, 



330 ; pelagic, 330 

 Faunal realms, 116 

 Feathers, contour, 369; down, 369; 



flight, 369 

 Feces, 125 

 Feign death, 415 

 Felidae, 423 

 Femur, 4, 338 

 Fertile, 108 



Fertilization, 12, 127, 133 

 Fertilized egg, 12, 127, 134 



Fertilizers, 430 



Fibula, 338 



Filoplumes, 370 



Finches, 393 



Fins, 311 ; anal, 312 ; caudal, 312 ; dor- 

 sal, 312 ; pectoral, 312 ; pelvic, 313 ; 

 ventral, 312 



Fireflies, 49 



Fish lice, 166 



Fish moths, 109 



Fisheries, Bureau of, 327 



Fishes, 309 ; Age of, 331 



Fission, 262 



Fittest, survival of, 183 



Flagellum, 285, 291, 307 



Flatfishes, 325 



Flatworms, 261, 308 



Fleas, rat, 104; water, 165 



Flesh flies, 71 



Flickers, 389 



Flies, 69; bluebottle, 71; crane, 76; 

 flesh, 71; fruit, 72; Hessian, 76; 

 house, 69; hover, 73; tsetse, 71. 

 See also Botflies ; Blowflies 



Flounders, 325 



Flower and Lydekker on whales, 416 



Flowers and insects, 104 



Flukes, 261, 308; blood, 264; hu- 

 man, 264 ; liver, 262 ; lung, 264 



Flycatchers, 391, 399 



Food, classes of, 118 



Food vacuole, 290, 293 



Forbes, S. A., on man versus insects, 

 98 



Fossil animals, 181, 219, 231, 331, 350, 

 366, 401, 433; insects, 113 



Fowl, jungle, 385; domestic, 385 



Fox-farming, 432 



Fox snakes, 361 



Foxes, 424 



Fringillidae, 393 



Frog, 332; bull, 332; green, 332; 

 leopard, 332 ; tree, 347 



Fruit flies, 72 



Fur-farming, 432 



Gadow, Professor, on regeneration, 



345 

 Gallflies, 92 

 Gallinae, 385 

 Ganglia, 10 

 Gar pike, 323 

 Garter snakes. 362 

 Gasteropoda, 214, 309 

 Gastric mill, 151 

 Gastrula, 134 

 Geese, 382 

 Gemmules, 286 

 Gene, 179 

 Generalized insects, 111, 112 



