INDEX 



487 



Mott, Mr. Albert, on antiquity of in- 

 tellectual man, 425 

 Mound-builders, a semi-civilised race, 



426 

 Mounds of N. America, antiquity of, 



428 

 Miiller, Dr. Hermann, on fertilisation 



of Alpine flowers, 403 



on fertilisation of Martagon lily, 



402 

 on differences of allied species of 



flowers, 404 

 Murray, Mr. Andrew, objections to 



theory of mimicry, 76 

 Musa paradisiaca, 254 

 Musaceae, 254 

 Muscicapidae, sexual colouring and 



nidification of, 128 

 Musophagidae, sexual colouring and 



nidification of, 125 

 Mygale, a bird-catching spider, 291 

 Mysis chameleon, changes of colour 



of, 347 



NAPEOGENES, all the species are 



mimickers, 61 



Natchez man, antiquity of, 438 

 Natural History before Darwin, 451 

 selection, the principle stated, 31, 



32 

 general acceptance of the theory 



of, 35 



tabular demonstration of, 166 

 outline of theory of, 167 

 its effects on man and animals 



different, 173 

 hardly acts among civilised 



societies, 185 

 what it can not do, 187 

 cannot produce injurious or use- 

 less modifications, 187 

 Nectarineidae, 134 



Necydalidae, mimic Hymenoptera, 68 

 Nemophas grayi, a Longicorn mi- 

 micked by a Longicorn, 68 

 Nests of birds, why different, 101 

 of young birds, how built, 104 

 inferior, built by young birds, 108 

 construction of, described by 



Levaillant, 112 

 imperfections in, 116 

 influenced by changed conditions 

 and persistent habits, 119 



Nests of birds, classification of, accord- 

 ing to function, 122 

 of humming-birds, 322 



New forms, how produced by variation 

 and selection, 156 



Newton, Professor, on appearance of 

 living humming-birds, 317 



New Zealand, poor in flowers and 

 insects, 406 



Nocturnal animals, colours of, 38 



Nomada, 70 



North America, antiquity of man in, 

 433 



North American earth-works, 425 



Nuttall, Mr., on the rufous flame- 

 bearer, 317 



Nymphalidae, local resemblances of 

 species of distinct genera of, 383 



OBEREA, species resemble Tenthre- 

 dinidse, 68 



Oceanic islands first defined by 

 Darwin, 469 



Odontocera odyneroides, 68 



Odontocheila, 69 



Odontomachus, genus of ants, 280 



Odours absorbed unequally by dif- 

 ferently coloured stuffs, 390 

 of flowers attractive, 402 



Odynerus sinuatus,64 



OZcodoma cephalotes, 282 



CEcophylla smaragdina, 279 



Ogle, Dr. on colour and sense-percep- 

 tion, 389 



Oil from palms, 252 



Oncidiums, 257 



Onthophilus sulcatus, like a seed, 42 



Onychocerus scorpio, resembles bark, 

 41 



Optical theory of colour, 354 



Orange-tip butterfly, protective colour- 

 ing of, 43 



Orchids, 255 



Orchis, structure of an, explained by 

 natural selection, 146 



Orgyia antiqua and O. gonostigma, 

 autumnal colours of, 45 



Oriolidaa, 133 



Ornamental humming-birds, the most 

 pugnacious, 380 



Ornaments, display of, by male hum- 

 ming-birds, 320 



Orthoptera, 286 



