INDEX 



931 



Enamel. G43 

 Encephalocoele. 664 

 Endamoeba, 747 

 coli, 78 

 g-ingivalis, 78 

 histolytica, 67. 78 

 Endocrine glands. 666 

 summary, 678 

 system, 110 

 Endodei-m, 117. 130, 155 



of frog, 535 

 Endolimax nana, 78 

 Endolympii, 403, 503 

 Endomixis. 97 

 Endoparasite. 737 

 Endoplasm, 81 

 Endopodite, 2G9. 270 

 Endoprocta. 184 

 Endosarc. 81, 86 

 Endoskeleton, 380. 517 

 Endostyle, 366 

 Engranlidae, family, 448 

 Ensiform process. 644 

 Enterobius vernicularis, 176 

 Enterocoele formation. 811 

 Enterokinase. 385 

 Enteronomas. 67 

 Entomobrvidae, family, 312 

 Entomostraca. subclass, 32, 204. 283 

 Entosphenus. 413 

 tridentatus. 415 

 Entozoic animals. 66 

 Enzvmes, 56, 383 

 Eohippus, 874 

 Ephemerella grandis. 321 

 Ephemerida. order, 26.'5. 321 

 Ephvdatia, 121 

 Ephyra, 139. 140 

 Epibolic gastrulation. 809 

 Epibranchial cartilage, 428 

 Epicauta puncticollis, 323 

 Epicoracoid cartilage, 521 

 Epicranium, 343 

 Epidermis. 499 

 Epididvnii.'--. 438. .572. 653 

 Epigyiium. 293 

 Epinephrine. 671 

 Epiotic. 465 

 Epipharynx, 357 

 Epiphragma, 238 

 Epiphysis, 419. 469 

 Epipodite. 269. 270 

 Episternum of frog. 521 

 Epistropheus. 609 

 Epistvh"?. 72. 75 

 Epitheliomuscular cell, 148, 150 

 Eptesicus fuscus, brown bat. 620 

 Equatorial plate. 62, 63 

 Eavius caballus. horse, 876 

 T^romobates. 298 



Erethizon dorsatus, porcupine, 625 

 Eriophyes pyri, 298 

 Ervthrocvtes. 108. 395 



of fi-og. 503 

 Erythroneura comes. 320 



ziczac. 317 

 Escocidae. 450 

 Esophagus. 203 

 Esox. 451 



Estrogenic hormone. 676 

 Etheostomidae. family, 454 

 Ethiopian region. 712 

 Ethmoid bone. 465 



Euarctos americanus, brown bear, 629 

 Eubranchipus, 283 

 Euconulus chersinus trochulus. 240 

 Eucosmidae. family. 328 

 Eudorina, 73 

 Eugenic grouDS. 841 

 measures, 844 



Eugenics, 821 



Euglandina singleyana, 240 

 Euglena, 67, 81 

 behavior. 84 

 reproduction, 83 

 respiration, 83 

 Euglenoid movement, 84 

 Eulamellibranchiata. 256 

 Euophrys inonadnock, 296 

 Eupagurus, regeneration, 685 

 Euplectella. 120 

 Euplotes. 71 

 Eupomatus larva. 237 

 Eurypelma steindachneri. 297 

 Euselachii, order, 422 

 Euspongia, 122 

 I'jusuchia. suborder. 548, 560 

 Eustachian tube. 608 



frog. .530 

 Eutheria, subcla.ss of mammalia, 617 

 Eutherodactj'lus. 485 

 Eventognathi. suborder, 450 

 Involution, annelid theory. 867 

 arachnid theory, 867 

 distributional evidence. 876 

 echinoderm theory. 868 

 embryological evidence. 879 

 geological evidence. 873 

 morphological evidence. 878 

 physiological evidence, 883 

 theory, 863 

 Excitor hormones. 667 

 Excretion, starfish. 233 

 Excretory organs, cat, 650 

 cliicken. 606 

 fish. 464 

 frog, ,515 

 or urinarj' system. 110 

 Bxoccipital bones. 463. 641 

 Exocoetidae. family. 451 

 Exogyra. 854 

 Exopodite. 269. 270 

 Exumbrella. 132 

 Eye of chicken. 607 

 of frog. 528 

 worm. 176 

 Eyeball, 401 

 Eyespot, 233 



Facets, 345 

 Facial nerve. 527 

 Fairy shrimps. 283 

 Falconiformes. order, .589 

 Falcons, 589 

 Fallopian tubes, 652 

 Family elopidae. 447 



size, 841 



in dysgenic groups, 842 

 Fances, 648 

 Fascia. 612 

 Fasciola. 101 ^ _^„ 



hepatica. liver fluke. 743. 758, (u9. 760 

 Fascioloides. 7.39 

 Fasciolopsis. 760 

 Fat bodies of frog, 532 

 Feathers. 582. 600 

 Feeblemindedness. 838 

 Felidae. family. 629 

 Felis cougar, mountain lion. 629 



domestica. house cat. 639 



hernandesii, jaguar, 629 



pardalis. ocelot. 629 

 Femoral vein, frog, 509 

 Femur, 306. 347 



of frog. 522 

 Fenestra ovalis. 574 

 Ferrisia. 240 



excentrica. 238 



