596 



INDEX 



Earthworm : general characters, 

 318, 341 ; metameric segmenta- 

 tion, 319 ; coelome and enteric 

 canal, 320, 325, 328, 342, 343, 

 34$ ; cell-layers, 321, 343; blood- 

 ' system, 328, 342, 344, 345 ; ne- 

 phridia, 331, 342, 344, 343 ; 

 nervous system, 333, 344 ; differ- 

 entiation of organs and tissues, 

 335 ; reproduction and reproduc- 

 tive organs, 336, 342, 343 ; de- 

 velopment, 340, 562 



Ecdysis, 355 



Echinodermata, 397 



Ectoderm, 202, 209, 293, 304, 307, 

 340, 369, 454, 558 



Ectoplasm, 231 



Efferent duct of spermary, 193, 338, 



451 , 

 Egestion, 233 

 Egg of fowl, S47, 555, sS6 

 Egg-cell, see Ovum 

 Egg-sac, 337 

 Elasmobranchii, 415 

 Embryo, 9, 200 ; and see under 



various types 

 Embryology, 217 

 Embryonic membranes, 578, ^Sy 

 Emulsification of fats, 7^ 

 Enamel, 418, 429, 493 

 Enamel-organ, 429 

 Encystation, 232, 244, 254, 272, 279 

 Endoderm, 202, 210, 293, 298, 304, 



307, 340, 369. 454, 558, 565 



Endoderm-lamella, 309, 310 



Endolymph, 188 



Endolymphatic duct, 187, 420, 449 



Endoparasite, see Parasite 



Endoplasm, 231 



Endophragmal system, 349 



Endopodite, 350 



Endoskeleton : Fro^, 16, 35, 205 ; 

 La^celet, 406 ; Dogfish, 419 ; 

 Rabbit, 470 ; development of in 

 Vertebrates, 576 



Endostyle, 408 



Energy, conversion of potential into 

 kinetic, 235 ; source of, in chloro- 

 phyll-containing organisms, 248 



Enteric canal : Frog, 23, 204 > 

 Earthworm, 320, 327 ; Crayfish, 

 356 ; Mussel, 386 ; Lancelet, 405, 

 408 ; Dogfish, 429 ; Rabbit, 490- 

 499 ; development of in Verte- 

 brates, 204-210, 571 

 Enteric epithelium, 322, and see 



Epithelium 

 Enterocoele, 561 

 Enteron or enteric cavity, 291, 304, ' 



308, 358 

 Epencephalon, 566 

 Epiderm : Frog, 128; Earthworm, 



320, 321 ; Crayfish, 355 ; Mussel, 



385 ; Lancelet, 411 ; Dogfish, 



417 ; Rabbit, 468 

 Epididymis, 451, 521, 576 ■ 

 Epiglottis, 495, 500 

 Epipharyngeal groove, 468 

 Epiphysis of Vertebra, 480, 486 

 Epipodite, 352 

 Epistoma, 349 

 Epistylis, 281, 288 

 Epithelial cells : columnar, 107 ; 



ciliated, 109; glandular, 130 «/ 



seq. ; squamous, 1 10 ; stratified, 



128 

 Epithelium, 109, 311 ;coelomic, 322, 



and see Peritoneum ; dene — see ^ 



Epiderm ; enteric, 322, and see 



Endoderm 

 Equivocal generation, see Abio- 



genfeis 

 EuGLENA ; occurrence and general 



characters, 251 ; inovements, 251 ; 



structure, 251 ; nutrition, 252 ; 



resting stage, 254 ; reproduction, 



254; animal or plant? 255; 



practical directions, 231) 

 Eustachian tube or recess, 17, 189, 



49S. S19 



Eustachian valve, 506 



Evolution : organic, 221, 285 ; of 

 animals and plants, 258 



Excretion, 148, 150, 23S 



Excretory organs, see Kidney and 

 Nephridium, and compare Con- 

 tractile vacuole 



Exopodite', 350 



