Newton, through which he was enabled to grasp fundamental principles, and so apply them as to bring order out of chaos, and illuminate the world of life as Newton illuminated the material universe. Paraphrasing the eulogistic words of the poet, we may say, with perhaps a greater approximation to truth "Nature and Nature's laws lay hid in night; God said, 'Let Darwin be,' and all was light." INDEX ABBOTT, C. C., on American palæo- | Ampelidæ, sexual colouring and nidifi- cation of, 126 Abbott, Dr., on nests of Baltimore Ancient races of North and South Abraxas grossulariata, 84 Abrus precatoria, perhaps a case of Absorption-colours or pigments, 357 Acræidæ, the subjects of mimicry, 61 America, 429 Andaman islands, pale butterflies of, Acronycta psi, protective colouring of, Andrenida, 70 Angræcum sesquipedale, 146 its fertilisation by a large moth, Animal colours, how produced, 357 and plants under domestication, Anisocerinæ, 66 mimicry of, 67 Anthrocera filipendulæ, 84 Aleutian islands, ancient shell mounds Anthropologists, wide difference of in, 437 Allen, Mr. Grant, on protective colours of fruits, 398 Alpine flowers, why so beautiful, 403 Amboyna, large-sized butterflies of, American monkeys, 306 opinion among, as to origin of conflicting views of, harmonised, Antiquity of man, 167, 180 in North America, 433 numbers of, in India and Malaya, Ants, destructive to insect-specimens, Barbets, 297 Bark, varieties in tropical forests, 243 and vegetation, special relation Barometer, range of, at Batavia, 234 Barrington, Hon. Daines, on song of on danger of song and gay plum- Batavia, meteorology of, 219 and London, diagram of mean greatest rainfall at, 235 66 his observations on Leptalis and his paper explaining the theory on recent immigration of Ama- on climate at the equator, 235 on animal life in Amazon valley, on abundance of butterflies at Ega, on importance of study of butter- on leaf-cutting ants, 282 on bird-catching spider, 291 on use of Toucan's bill, 298 on large serpents, 304 on the habits of humming-birds, 318 Belt, Mr., on leaf-cutting ants, 283 on uses of ants to the trees they on a leaf-like locust, 288 on the habits of humming-birds, on uneatable bright-coloured frog, on use of light of glow-worm, 374 Bill of humming-birds, 315 dull colour of females, 80 refusing the gooseberry cater- why peculiar nest built by each on instincts of newly-hatched, 109 how many known, 312 Bryophila glandifera and B. perla pro- Bucerotidæ, sexual colouring and Bucconidæ, sexual colouring and Buff-tip moth, resembles a broken Buildings of various races do not Bullock on food of humming-birds, Buprestidæ, resembling bird's dung, 42 similar colours in two sexes, 80 Butterflies, abundance of, in tropical conspicuousness in tropical forests, colours and form of, 273 females do not choose their part- with gaily coloured females, 373 influence of locality on colours CACIA anthriboides, 67 of, 382 Cælogynes, 257 cases of local variation of colour Calamus, 249 Bombus hortorum, 64 among, 387 nidification of, 134 Bombycilla garrula, colours and California, auriferous gravels of, 442 Bombylius, 69 Calaveras skull found in auriferous Callithea, imitated by species of Cata- Bonelli, Mr., on the Sappho comet Callithea markii, 274 humming-bird, 318 Brain of the savage but slightly less Callizona acesta, protective colouring size of, an important element of Campylopterus hemileucurus mental power, 188 of savage races larger than their of man and of anthropoid apes pug- nacious and ornamental, 380 Capnolymma stygium, 67 52 similar colouring of two sexes, 80 Centropus, sexual colouring and nidifi- Cockatoos, 293 cation of, 125 Cephalodonta spinipes, 66 Cocos islands visited by Darwin, 456 Ceroxylus laceratus, imitates a moss- Coloration of tropical birds, 300 covered stick, 47 Certhiola, sexual colouring and nidifi- Cetoniada, how protected, 53 similar colours of two sexes, 80 Chameleon, cause of changes of its Charis melipona, 68 Chematobia, wintry colours of this Chemical action changes colours, 357 Chlamys pilula, resembles dung of Chrysididæ, how protected, 52 Cicindela, adaptive colour of various Cilix compressa, resembles bird's Cladobates, mimicking squirrels, 76 Clark, Rev. Hamlet, on leaf-cutting Colour, in animals, popular theories frequent variations of, in domes- influenced by need of conceal- in deserts, 37 in arctic regions, 37, 38 special modifications of, 39 of autumnal and winter moths, 45 of female birds, 80 in relation to nidification of birds, gaudy colours of many cater- in nature, general causes of, 88 with their nidification, 124, 128 |