INDEX 



629 



Giant tortoises, 401 



Giardia, 80 



Giardia lamblia, 80 



Gibbons, 449, 450, 534 



Gila monster, 392, 402 



Gill arches, 319 



Gill chambers, 267, 258 



Gill filaments, 215, 357 



Gill rakers, 357 



Gill slits, 319, 322, 329-330, 358, 359, 379 



Gills, 215, 280, 357, 378, 379, 468 



Giraffe, 441 



Girdles, 325 



Gizzard, 235, 237, 282, 406 



Glacial lakes, succession, 509 



Gland cells, 23, 137, 138, 243, 467 



Glands, 467, 468, 484 



alveolar, 467 



calciferous, 237 



coxal, 304 



mucous, 365 



parathyroid, 492 



tubular, 467, 468 

 Glandular epithelium, 98, 467 

 Glass snake, 390 

 Glenoid cavity, 327 

 Gliding, 411 

 Globigerina ooze, 82 

 Glochidium, 218 

 Glomerulus, 332 

 Glomus, 332 

 Glottis, 391, 427 

 Glowworms, 283 

 Glue cells, 157 

 Glycerin, 20, 35 

 Glycogen, 21, 329 

 Gnathostomata, 341 

 Goats, 439, 535 

 Gobies, 360, 364 

 Goblet cells, 99, 100 

 Golden plover, 418 

 Goldfish, 364 

 Golgi bodies, 30 

 Gonads, 108, 142, 150-152, 157, 214, 317, 319, 



346, 493 

 Gonangia, 162 

 Gordiacea, 180, 185 

 Gordius, 184 

 Gorgonia, 149 

 Gorilla, 449, 460, 534 

 Grafting, 165, 242 

 Grain moth, 290 

 Grantia ciliata, 131 

 Granular structure, protoplasm, 23 

 Graptolites, 541 

 Grasshopper, 277 

 Grassi, 91 



Gray matter, 333, 334 

 Grayfish, 349 



Great Barrier Reef, 154, 156 

 Greeks, 578 



Green glands, 258, 259, 470, 494 

 Green hydra, 457 

 Gregarina blattarum, 82 

 Gregarina polymorpha, 82 



Gregarines, 83 

 Gregariousness, 522 

 Grosbeak, beak, 412 

 Ground beetles, 279, 294 

 Ground hog, 445 

 Ground squirrels, 443, 484, 537 

 Groups, animal, 58 

 Grouse, spruce, 537 

 Growth, 18, 44, 51, 65, 492 



cycles, 44 



in plants and animals, 42 

 Growth period, 109-112 

 Grub, white, 185, 284 

 Gryllotalpa hexadactyla, 279 

 Guanin, 356, 364, 375 

 Guano, 423 

 Guans, 534 

 Guinea fowls, 534 

 Guinea pigs, 659, 560, 562 

 Gullet. 69, 70, 79, 146 

 Gulls, 414 

 Gustatory cells, 336 

 Gypsy moth, 290 



Habit, 201, 263, 305, 361, 377, 500-501. 503 



Habitat, 506 



Haeckel, 41, 571 



Hag fishes, 340-343 



Hair, 54, 324, 424, 426, 534, 547 



Hair feathers, 406, 406 



Hair worms, 184 



Halteres, 280 



Hand, 325 



Haploid number, 110, 111 



Hares, 437, 537 



Harvest flies, 285 



Harvestmen, 308 



Harvey, 580, 581 



Haversian canals, 101 



Hawks, 414, 509 



beak, 412 



foot, 413 

 Hay fever, 520 

 Head, 159, 222, 248, 322 



lizard, 390 



snake, 390 

 Head kidney, 332 

 Health, 515, 516, 520 



Hearing, 283, 334-338, 389, 408, 428, 473 

 Heart, 216, 236, 237, 257-259, 281, 317, 322, 330, 



367, 386, 406, 407, 428, 469, 481 

 Heart muscle, 102 

 Heat, 38, 458, 473, 483-485 

 {See also Temperature) 

 Heat regulation, 483 

 Hedgehogs, 434 



skull, 426 

 Heidelberg man, 453 

 Hdiosphaera inermis, 81 

 Heliozoa, 83 

 Helix pomatia, 223 

 Hellbender, 371 

 Helmholtz, 27 



