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 
Muller, 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 
Musacese, 254 
Muscicapidae, sexual colouring and 
nidification of, 128 
Musophagidse, sexual colouring and 
nidification of, 125 
Mygale, a bird-catcbing spider, 291 
Mysis chameleon, changes of colour 
of, 347 
Napeogetstes, 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 
Nectarineidss, 134 
Necydalidse, 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 
NuttaU, Mr., on the rufous flame- 
bearer, 317 
Nymplialidse, 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 
Odontomachns, genus of ants, 280 
Odours absorbed unequally by dif- 
ferently coloured stuffs, 390 
of flowers attractive, 402 
Odynerus sinuatus,64 
(Ecodonia cephalotes, 282 
(Eeophylla 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 
Oriolidse, 133 
Ornamental humming-birds, the most 
pugnacious, 380 
Ornaments, display of, by male hum- 
ming-birds, 320 
Orthoptera, 286 
