INDEX 



635 



Metals, 8 



Metameres, 52, 234, 236, 237, 238, 242, 250, 277, 

 331-332, 576 

 thoracic, 255 

 Metamerically arranged ganglia, 246 

 Metamerism, 52, 246, 310, 314, 576 

 Metamorphism, 540 

 Metamorphosis, 478 

 ascidian, 318 

 butterfly, 286 

 Crustacea, 269 

 frog, 378, 379 

 insects, 283-286 

 mosquito, 292 

 sheep-liver fluke, 173 

 shrimp, 270-272 

 starfish, 201 

 tunicates, 319 

 Metanephric tubules, 331, 332 

 Metanephridium, 470 

 Metanephros, 332, 382, 494 

 Metaphase, 48, 49 

 Metaphytes, 41 

 Metaplasm, 30 

 Metapleural folds, 319, 320 

 Metapterygium, 367 

 Metasoma, 306 

 Metatarsals, 325, 327, 404 

 Metathorax, 276, 277 

 Metazoa, 41, 95-97, 107-108, 463, 468. 470, 



477, 494, 516 

 Metencephalon, 334 

 Meteoritic theory, 27 

 Methods of evolution, 549 

 Methods of reproduction, 107 

 Metridium dianthus, 147 

 Mice, 437 



Microgametes, 45, 86, 89, 90, 470 

 Microgametocytes, 89, 90 

 Micromeres, 378 

 Micronucleus, 70, 71, 74-77, 86 

 Micropyle, 476 

 Microscope, 581 

 Microscopists, 581 

 Mid-brain, 334, 375 

 Middle ear, 337, 368, 370 

 Middle layer, 132 

 Midges, 108 

 Mid-gut, 467 

 Migration, 529-530 

 birds, 417-418 

 fishes, 360 

 Milk dentition, 425 

 Milk glands (see Mammary glands) 

 Millepora, 163 

 Millipedes, 276 

 MUt, 361 



Mimicry, 613, 514 

 Mind, 503 

 Minks, 436 



Miracidium, 173, 174, 176 

 Mites, 307, 308, 525 

 Mitochondria, 30 

 Mitosis, 47-51, 48, 646 

 Mixtures, 10 



Moas, 533 



Modification of types, 529 



under cultivation, 546 

 Modifications, birds, 413 



insect legs, 279 

 Moeritherium, 551, 662 

 Molars, 425, 551, 662 

 Mole cricket, 279 

 Molecule, 8 

 Moles, 434, 509 

 MoUusca, 212, 221, 575, 676 

 Molluscoidea, 193 

 MoUusks, 115, 212-233, 465, 468, 477, 490, 494, 



509, 522, 541 

 Molting, 182, 264, 284, 394, 416 

 Monarch butterfly, 286, 530 

 Monaxon spicules, 132, 133 

 Monecious animals, 470 

 balanoglossida, 316 

 bryozoa, 192 

 ctenophores, 157 

 earthworm, 240 

 hagfishes, 339 

 leeches, 251 

 moUusks, 229 

 snails, 223 

 tunicates, 317 

 Mongolian type, 453 

 Mongoose, 433 

 Monhystera sentiens, 181 

 Monitors, 392 

 Monkeys, 437, 534 

 Monoblastic embryo, 122 

 Monodelphia, 429 

 Monohybrid, 669, 561 

 Monotremata, 429, 430 

 Monotremes, 427, 429, 430, 445, 485, 534 

 Moose, 437 

 Morgan, T. H., 569 

 Morphological differentiation, 95 

 Morphological unit, 29 

 Morphology, 5 

 Morula, 121-123, 444, 477 

 Mosaic image, 260 

 Mosaic theory of creation, 26 

 Mosquitoes, 90, 292, 293, 526 

 comparison, 292 

 malarial, 292 

 proboscis, 278 

 Moss animals, 190 

 Mother-of-pearl, 214 

 Moths, 276, 278, 290 

 Motion, 55 



Motor end plate, 102, 243 

 Motor fibers, 333 

 Motor functions, 494-495 

 Motor neuron, 244 

 Mountain, faunal zones, 530-531 

 Mountain goat, 535 

 Mouse, northern jumping, 537 

 Mouth, 466 

 bryozoans, 192 

 crayfish, 268 

 deep-sea fishes, 363 

 earthworm, 237, 238 



