INDEX GLOSSARY. 



449 



Ink gland, 611 

 Insecta insects, 578 

 Insects, development in, 505 



growth in, 732 



integument of, 341 



of oceanic islands, 836 



respiration in, 478 



sense of smell of, 369 

 of taste of, 369 



voice of, 396 



wings of, 412 

 Insectivora, 652, 658 

 Insertion, of muscle, 429 

 Inspiration, 481 

 Instinct, 875 

 Integument, 70, 324, 338 



of arthropods, 342 



of insects, 341 



of mammals, 343 



of vertebrates, 733 



special structures of, 346, 347 

 Intelligence, 880 

 Internodes the portion of the stem 



between two nodes. 

 Intestinal glands, 720 

 Invertebrates, eyes of, 379 

 Invertin, 462 

 Involucre, 120 

 Iris, 379 

 Isoetaceae, 291 

 Isoetes, 291 

 Isopoda, 563 



Jaws, 346 

 Jelly fishes, 528 



nervous system of, 437 

 Jungermanniaceae, 271 



Kangaroo, 652 

 Karyokinesis mitosis, 686 

 Katydid, 396, 582 

 Kidneys, 329, 492 

 origin of, 721 

 Kidney tubule, 492 

 King bird, 650 

 Kiwi. See also Apteryx, 650 



Labium, 578 



Labyrinth, 392, 393, 398, 399 



Lace wing flies, 585 



Lacertilia, 645 



Lacteals, the lymphatic vessels of the 



intestine. 



Lacteal capillaries, 472 

 Lactuca, 38, 39 

 Lacunae, 426 



Lady slipper, 850 

 Lamellae of bone, 426 

 Lamellibranchiata, 604 



structure of, 604 

 Lamellirostres, 650 

 Lancelet, 625 



egg, cleavage of, 712 



notochord of , 422 



structure of, 625 

 Lantern fly, 163 

 Lateral line, 404 

 Latitude and plants, 204 

 Lari, 650 

 Larks, 650 

 Larvae, dispersal, 722 

 Larva, the young of an animal before 

 metamorphosis, when devel- 

 opment is indirect. 



of hydra, 500 



of the lancelet, 200, 210 



of tunicates, 621 



trophic, 723 



Law of Biogenesis, 809, 812 

 Leaves, form of, 23 



storage, 114 



venation of, 26 



Leaf, structure of, 14, 16, 24, 80 

 Leech, locomotion of, 411 

 Legume, 162 

 Lemurs, 668 

 Lens of eye, 381 

 Leopards, 663 

 Leptocardia, 625 

 Lepidoptera, 586 

 Leptothrix, 227. 229 

 Leptostraca, 561 

 Lice, 583 



Lichens, 48, 216, 263, 745 

 Life habits, 744 

 Ligaments, 428 



origin of, 721 



Light and plants, 205-208 

 Light sense in protozoa, 374 

 Lignified cell- walls, 97 

 Lilac mildew, 748 

 Lime, secretion of, 349 

 Limulus, 151, 565 

 Linguatulida, 572 

 Linin, 675, 690 

 Lions, 663 

 Liver, 472, 493, 720 



excretion by, 493 

 Liver fluke, 231, 232, 754 

 Liverworts, 264, 267 

 Lizards, 645 



rudimentary appendages of, 795 



Numbers refer to paragraphs; Black Face numbers refer to figures. 



