INDEX 



599 



Ground beetles, 274, 289 



Ground hog, 417 



Ground squirrels, 41", 45(), 509 



Groups, animal, 57 



Grouse, spruce, 509 



Growth, 16, 17, 43, 50, (55, 404 



cycles, 43 



in ijlants and animals, 41 



period, 107-110 

 Grub, white, 182, 279 

 (iri/llotalpn hexndactyla, 274 

 Guanin, 350, 358, 368 

 Guano, 404 

 Guans, 506 

 Guinea fowls, 506 

 Guinea pigs, 531, 532, 534 

 Gullet, 69, 70, 79, 144 

 Gulls, 401 



Gustatory cells, 329 

 Gypsy moth, 285 



Habit, 198, 257, 299, 355, 371, J,72~473, 475 



Habitat, 478 



Haeckel, 40, 542 



Hag fishes, 333-335 



Hair, 53, 318, 406, 519, 534 



Hair feathers, 393 



Hair worms, ISl 



Halteres, 275 



Hand, 319 



Haploid number, 108, 109 



Hares, 414, 509 



Harvest flies, 285 



Harvestmen, 303 



Harvey, 551-554 



Haversian canals, 99 



Hawks, 401, 481 



beak, 399 



foot, 400 

 Hay fever, 492 

 Head, 157, 218, 243, 316 

 Health, 487, 488, 492 



Hearing, 277, 331, 380, 385, 395, 410, 445 

 Heart, 212, 231, 232, 252-254, 276, 297, 311, 312, 

 316, 317, 324, 361, 379, 380, 393, 394, 409, 

 441, 552 



muscle, 100 

 Heat, 37, 430, 445, 455-457, 468 



(See also Temperature) 

 Hedgehogs, 412 



skull, 407 

 Heidelberg man, 424 

 Helidsphaera inermis, 81 

 Heliozoa, 83 

 Helix pomatia, 219 

 Hellbender, 365 

 Helmholfz, 26 

 Helminthology, 5 

 Hemichordata, 308, 309, 441, 547 

 Hemimetabola, 279, 280 

 Hemiptera, 284 

 Hemocoel, 254, 268, 276, 450 

 Hemocyanin, 462 



Hemoglobin, 231, 316. 462 



Hemogregarine, 82 



Heniolymph, 462 



Hemolysis, 462 



Hemophilia, inheritance, 536 



Hen, egg, 376 



Hepatic artery, 339 



Hepatic caeca, 195 



Hepatic portal system, 339, 340, 364, 380, 408, 409 



Hepatic vein, 339 



Herbivores, 439 



Hereditary units, 95, 521, 527, 529 



{See also Genes) 

 Hermaphroditism, 105 

 Hermit crab, 261 



and sea anemone, 495, 496 

 Herodotus, 495 

 Herons, 401 

 Herpetology, 5 

 Heterocercal tail, 338, 349 

 Heterometabola, 279 

 Heteronomous metamerism, 51 

 Heterosis, 536 



Heterozygous condition, 528, 530—532 

 Hexactinellida, 128 

 Hibernation, 374, 417 

 Hind-brain, 328 

 Hind-gut, 276, 438 

 Hinge ligament, 208-210 

 Hinge teeth, 209 

 Hippocrates, 549 

 Hippopotamus, 416, 506 

 Hirudinea, 242, 245 

 Hirudo medicinalis, 246 

 Histology, 5, 553 

 History of zoology, 549, 555 

 Hoatzin, 505 

 Holoblastic egg cell, 118, 225, 236, 345, 371, 448, 



449 

 Holometabola, 279, 281 

 Holophytic, 79 

 Holostei, 344, 345 

 Holothurioidea, 201, 204, 513 

 Holozoic, 79 

 Homing instinct, 501 

 Homo, 424 

 Homo sapiens, 425 

 Homooercal tail fin, 349, 350 

 Homoiothermous animals, 456 

 Homolecithal egg cell, 116-119, 448 

 Homology, 62, 53, 260, 320, 321, 445, 518, 543 

 Homonomous metamerism, 51 

 Homoptera, 284 



Homozygous condition, 528, 530-532 

 Homunculus, 554 

 Honey, 282 



3oney sac, 276 

 oney suckers, 506 

 Honey tube, 284 

 Honeybee, 276, 282, 291-293, 539 



head, 273 

 Honeydew, 285 

 Hoofs, 318 

 Hooke, 31, 552, 554 

 Hooks, tapeworm, 168 



