598 



INDEX 



Ganglion, 163, 167 ; and see Nerve- 

 ganglia 



Gastric glands, see Glands 



Gastric juice, 71, 74, 132 



Gastric mill, 358 



Gastrolith, 359 



Gastrula, 558 



Gastrocnemius, 59 



Gemmation, see Budding 



Generation, asexual, see Aga- 

 mobium 



Generation, sexual, see Gamobium 

 ,, alternation of, see Alter- 



nation of generations 



Generative organs, see Reproductive 

 organs 



Genus, 215, 21S 



Germinal disc, 556 



Germinal epithelium, 194, 196, 336 

 ,, vesicle and spots, 546 



Germplasm, 555 



Gestation, 525 



Giant-fibres, 334 



Gills : Tadpole, 10, 204, 207 ; Cray- 

 fish, 360; Mussel, 382, 386; 

 Dogfish, 432, 455 



Gill-arches and clefts, see Branchial 

 apertures, arches, clefts and septa 



Gill-cover, 347, 360 



Gill-rays, see Branchial rays. 



Gizzard ; Earilnuornt, 327 ; Cray- 

 fish, 356, 358 



Gland-cells : Hydra, 298, 299 ; 

 Earthworm, 327, 339 ; and see 

 Glands and Goblet-cells. 



Glands : Cowper's, 523 ; digestive, 

 see Enteric canal ; gastric, 131, 

 431, 497 ; green, 361 ; Harderian, 

 186, 518 ; lachrymal, 518 ; mam- 

 mary, 467, 468, 489 ; Meibomian, 

 518 ; oesophageal, 327 ; perineal, 

 469, 523 ; prostate, 5 23 ; race- 

 mose, 135; rectal, 523 ; salivary, 

 494 ; and see kidney, liver, pan- 

 creas, &c. 



Glenoid cavity, 47 



Glochidium, 396 



Glomerulus, 146, 574 



Glottis, 17, 495 



Glycogen, 134 



Goblet-cells, 109, 130, 131 

 Gonad, 193 : and see Reproductive 



organs 

 Gonaduct, see Reproductive organs 

 Grey matter of spinal cord and 



brain, 156, 160, 167 

 Growth, 236 

 Gryllotalpa, 550 

 Gullet, 253, 265, 275 ; and see 



Enteric canal 



H. 



H 



_ temal arch and spine, 425 



Hsematochrome, 243 



H^MATOCOCCUS : general eharac- 

 ters, 240 ; rate of progression, 

 240 ; ciliary movements, 242, 

 250 ; colouring matter, 242 : 

 motile and stationary phases, 

 244 ; nutrition, 245 ; source of 

 energy, 248 ; reproduction, 250 ; 

 dimorphism, 250 ; animal or 

 plant ? 255 ; practical directions, 



Hsemocyanin, 365 



Hfemoglobin, 107, 330 



Hairs, 466, 468 



Hallux, 487 



Hand, see Manus 



Hardening, directions for, 136 



Head, 4, 347, 349,416, 468 



Heart, 20, 79, 87, 362, 392, 433, 

 503 ; development of, 442, 572 ; 

 pulsation of, 90 



Heat, evolution of, 151 



Hemibranch, 432 



Hepatic ducts, see Bile duct 



Hepatic caecum, 408 



Hepatic portal system, see Portal 

 system 



Hepato-pancreas, 359 



Heredity, 225 



Hermaphrodite, see Monoecious 



Heterogenesis, 284 



Hibernation, 8 



Higher (tripoblastic) animals, uni- 

 formity in general structure, 324 



Hind-brain, 202, 566 



