Index 



499 



Molluscs, larva, 105 

 over -wintering, 381 

 Monaco, Prince, 373 

 Monad, 90, 95, 98 

 Monarch butterfly, see Color, 



warning ; Mimicry 

 Mongoose, 402-4 



Monkey, transport, 155; see Adap- 

 tation 



Mono, see Lake 

 Monotremes, 140 

 Monsters, see Cyclopean Fish 

 Montague, 447 

 Moose, distribution, 174 

 Morgan, 88, 189, 202, 210; Stylo- 



nichia, 95-6 



Morphin, narcotic, 322, 324-5 

 Morphology, problems, 89 

 Mosaic, structure of egg, 190 

 Mososaurs, 129 

 Mosquitoes, Anopheles, malaria, 



97 



control, 454-5 

 disease, early ideas, 450 

 larvae, 378 

 malaria, 449-50 

 yellow fever, 450-2 

 Mosses, alternation of generations, 



reproduction, 99 

 spermatozoa, chemical attrac- 

 tion, 327 

 Moth, brown-tail, 155; control, 



406-7, parasites, 407 

 gypsy, 155; control, 406-7 



parasites, 407 

 sex-determination, 210 

 sex-linked inheritance, 214 

 silkworm, China, 410 

 color, protective; see Gypsy, 



Mimicry 

 Motility of life, 280-1; non-life, 



281 



Mountain lion, see Puma 

 Mountain beaver, see Sewellel 

 Mountain sheep, distribution, 



174 

 Mouse, plague, 161, 388, 390 



see Mice 



Movement, see Motility 

 Mulatto, hybrid; see Inheritance, 



man 



Mule, see Hybrid 

 Miiller, 330 



Multiple factors, 263-4 

 Murray, quoted, 156 

 Murtrie, 31 



Museum, U. S. National; see U. S. 

 National 



Museum of Natural History, see 



American Museum 

 Musk ox, distribution, 172; ill., 



170 



Muskrat, 425; distribution, 176 

 Mussel, destruction, 435 



life history, propagation, 436 



shells, use, 435 

 Mutants, see Mutation 

 Mutation, 239, et seq. 



ill. 239-40 



Myriapods, sex determination, 209 

 Myxine, hermaphroditism, 210 



Nageli, 203, 243 



Nanno -plankton, see Plankton, 



counting 

 Nansen, 366 

 Natural History Surveys, State, 



37 



Nautilids, 117 

 National Park Service, 420; see 



Yellowstone 

 Natural History Laboratory, see 



Illinois, Wisconsin 

 Natural, see Selection 

 Negro, susceptibility to disease; 



see Tuberculosis 

 yellow fever color, see Inheri- 

 tance, man, color 

 Nematodes, sex determination, 



209; see Sex cycle 

 Neoceratodus, invariability, 120 

 "Nero," 352 

 Nerve, facial, relation to muscle; 



see Vertebrates 

 fibre development, 195-9 

 Nervous impulse, 318, 322 

 system, 312 

 see Eat 



Nets, see Tow, Closing, Hensen 

 Nevill, 292 

 New Jersey Pine Barrens, 178 



-Training School, 85, 270 

 New Orleans, see Plague control 

 New York, Aquarium, see Zoologi- 

 cal Society 



Botanical Garden, 65; ill. 64 

 Skin and Cancer Hospital, 472 

 State Board of Health, see 



Cancer Laboratory 

 State Institute for Study of 



Maligant Disease, 473 

 Zoological Garden, see Zoological 

 Society 



