450 



INDEX — GLOSSARY. 



Llama, 666 

 Lobster, 561 

 Locomotion, 30S, 309 



in annelids, 410, 411 



in arthropods, 412 



in vertebrates, 413 

 Lophophore, 548 

 Love vine — dodder. 

 Luminescence, production of light, 869, 



Luna moth, 244 

 Lungs, 118 



of crab, 563 



of dipnoi, 631 



of snail, 602 



of vertebrates, 480 

 Lycoperdon, 46 

 Lycopodiaceae, 289 

 Lycopodinae, 288 

 Lycopodium, 289 

 Lymph, 474 



glands, origin of, 721 



origin of, 721 



spaces, 474 



vessels, 474 

 Lysin, 777 



Mackerel, 636 



Macrocystis pyrifera, 245 



Macrogamete — egg, 694 



Macronucleus — meganucleus, 674, 699 



Macrospore — megaspore. 



Macrura, 561, 562 



Maggot, 587, 670 



Malacostraca, 561, 563 



Malapterurus, 874 



Malarial fever, 768 



Male, 694 



Males, dwarf, 739 



Malleus — hammer. 



Malpighian tubules, 579 



Maltose — a kind of sugar C12H22OU. 



Mammalia — mammals, 651 



Mammals of Australia, 825 

 integument of, 343, 344 

 of glands of, 351 



Mammary glands, 651 



Man, 652 



Manatee, 652, 667 



Mandible, jaw, the lower jaw of ver- 

 tebrates or one of the first 

 pair of appendages of the 

 mouth in arthropods. 



Mandrels, 668 



Mangrove seedling, 259 

 tree, 854 



Mantle of molluscs, 592 



Marchantiaceae, 269 



Marsh plants, 192 



Marratiaceae, 284 



Marsupialia, 652, 654, 655 



Mastigophora, 511 



Maturation, 695 



of ovum, 184, 185, 785 

 of sperm, 786 



Maxilla, one of the second or third 

 pair of appendages of the 

 mouth of arthropods, 578, 

 586 



Mechanics of growth, 212-218, 727 



Mechanism of response, 441 



Medullary groove, 206, 207, 715 

 plate, 204, 205, 714, 715 

 ray, 62 

 tube, 209, 715 



INIedusa, 525, 528 



Medusae, light sense organs of, 375 



Meganucleus — macronucleus, the 

 larger of the two nuclei of cer- 

 tain protozoa. 



Megaspore, 286 



Membrane bone, 427 



Membrana tectoria, 398 



Membraneous labyrinth. See laby- 

 rinth. 



Mendel's laws of heredity, 782 



Meristematic, actively growing. 



Mesenchyma, mesodermal tissue which 

 arises as separate cells, not 

 as a continuous layer. 



Mesenteries, origin of, 721 



Mesocarpaceae, 237 



Mesoderm, 408, 517, 716, 717, 719 



Mesodermic somites, 204-210, 717 



Mesoglea, a gelatinous layer between 

 the ectoderm and entoderm 

 of coelenterates. 



Mesophyll, 27, 81 



Mesophytes, 183, 195 



Meso thorax, 578 



Metabolism, 484- 



nuclear control of, 682 



Metameres, 334 



Metamorphism, 581 



Metamorphosis — a marked change of 

 form occurring duringdevelop- 

 ment, 320, 506, 637, 723 

 in insects, 505 

 in tunicates, 621 



Metathorax, 578 



Metazoa, 517 



Mice, 652, 660 



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



