INDEX 



Ectoparasite, 640 

 Ectopistes, 459 

 Ectoplasm, 32, 55, 56 

 Edentata, 464, 482, 496 

 Edible bird's nests, 453 



crab, 217 



lobster, 217 



mussel, 298 



shrimp, 217 

 Eels. 379, 390, 395 

 Effector, 178, 179,352, 544, 548 



Efferent channels, 207, 208 



vein. 287 

 Egestion, 113 

 Egg, 79, 80, 574, 577 



of animals, amphioxus, 319 

 Ascaris, 151, 152 

 bird, 442, 443, 449 

 frog, 341 



human blood fluke, 143 

 Hydra, 104, 106, 116 

 liver fluke, 140 

 mammal, 477, 478, 481 

 vinegar eel, 153, 154 

 equational division, 574, 577 

 formation of, 574 

 funnel, 172 

 holoblastic, ISO 

 maturation, 574 

 meiosis, 574 

 reduction division, 574 

 sac, 172, ISO 

 summer, 165 

 svnapsis, 574 

 tetrad, 574 

 winter, 165 

 Egrets. 460 

 Eiseiiia, 182 

 Ejaculatory duct, 151, 341 



Elapidae, 407 

 Elasmobranchii, 324. 368 

 Elateridae, 248, 264 

 Electric, eel, 374 



organs, 374 

 Electron micrograph, 22, 604 

 Electron microscope, 16, 654 

 Electrophorus, 374, 375 

 Elephant, 464, 484, 487 

 birds, 458, 459 

 fishes, 376 

 Elephantiasis, 159 

 Elephant's ear sponge, 93 

 Elephas, 484, 496 

 Elytra, 244 

 Embia, 263 

 Embiids, 229, 260 

 Embioptera, 229, 260, 263 

 Embryo, 81 

 Ascaris, 151 

 frog, 357 

 gill slits, 614 

 grasshopper, 259 

 human, 476, 477, 577 

 Hydra, 104 



Embryo {Cunt.) : 

 mammal, 477 

 6-hooked, 141 

 tapeworm, 144 

 Embryogeny, 81-84 

 Embrvology, 10, 81-84, 115. 476, 

 477,564,613 

 descriptive, 564 

 Embryonic development, 357, 477 

 differentiation, 83 

 disk, 477 

 extirpation, 567 

 induction of eye, embryo, 567 

 transplantation, 568 

 Emu, 450 

 Enamel, 475 

 Encystment, 44 

 Endamoeba, 71 

 Endocrines, 355, 540 



system, 551 

 Endoderm, 83, 356, 357, 565 

 Endolymph, 549 

 Endoparasite, 640 

 Endoplasm, 32, 55, 56 

 Endopodite, 201, 205 

 Endoskeleton, 343, 380, 381 

 Endosome, 43 

 Endostyle, 318, 322, 323 

 Energy, 19, 511-512 

 chemical, 511 

 conservation of, 19, 511 

 electric, 512 

 kinetic, 511 

 light, 511 

 mechanical, 511 

 potential, 512 

 radiant, 512 

 transfer, 635 

 Engraver beetle, 264 

 Ensis, 301 

 Entamoeba, 71 

 Enterobius, 157, 158 

 Entcron, 122, 357 

 Enteropneusta, 315 

 Entomology, 10 

 Entosphenus, 365, 366 

 Environment, 599, 600, 631, 642 

 components, 599 

 ecologic, 631,642, 644 

 types of, 631,642 

 variations, 608 

 Enzyme, 175,517, 519 

 amylase, 175, 517 

 ccliulase, 175 

 lipase, 175, 517 

 pepsin, 175, 517 

 trypsin, 175, 517 

 Ecanthropus, 626 

 Eocene period, 618 

 Eohippus, SIS, 619. 620 

 Eosinophil, 335, 526 

 Ephemera, 263 

 Ephemcrida, 263 



701 



Ephcmeroptera, 229, 241, 260, 



263 

 Ephvra, 122 

 Epibdella, 147 

 Epicoracoid, 345 

 Epidermal supporting cells, 108 

 Epidermis, 105, 106, 107, 116, 



120,122,123,137,138,200. 



230,233,328 

 Epididymis, 341, 342 

 Epigastric artery, 338 

 Epiglottis, 535' 

 Epiavniim, 269 

 Epinephrine, 552 

 Epiphanes, 166 

 Epipliragm, 290 

 Epipodite, 203, 207 

 Epipolasida, 101 

 Ei^isternum, 345 

 Epithelial cell. 518 



tissue, 84, 85 

 Epitheliomuscular cell, 105 

 Epithelium, intestinal, 137 

 Eptatretus, 367 

 Equational division, 574 

 Equatorial plane, 25 

 Equilibrium, 355, 380, 549 



organ, 211, 288 

 Ec/uu6,491,618,619,620 



Eremobates. 279 



Erepsin, 521 



Eriophyidae, 279 



Eryops. 397 



Ervopsidae, 397 



Ervthrocvte, 85, 86, 335, 526, 



'529 

 Esophagus. 151, 154, 164, 184. 

 202. 235. 236, 247, 333, 34i 

 bulb, 154 

 of man, 515 



Estrogen, 553 



Ethiopian realm. 650 



Ethmoid, 500, 502 



Eubalaena, 480, 496 



Eubranchipus. 2^^15,221 



Eubranchus, 293 



Eucypris, 221 



Eudorina, 74, 561, 562 



Eugenics, 598 



Eug/cnd, 31,42-45,43,49 



behavior, 44 



habitat, 42 



locomotion, 44 



morphology, 43 



movement, 45 



nutrition. 43 



physiology, 43 



reaction. 44 



reproduction, 44, 45 



structure, 43 

 Euglcnoid movement. 45 

 Euglenoidina, 49 

 Eulamellibranchia, 282, 301 

 Eumeces, 414, 430 



