Climates of Timor, Angola, and Scot- Climbing plants of tropical forests, 37 Coloration of tropical birds, 110 Colour in nature, problems of, 159 as affected by heat and light,161 of tropical butterflies, 164 changes of, in animals produced by voluntary change of, in animals, not usually influenced by coloured Colour, the nature of, 180 a normal product of organization, as a means of recognition, 196 not caused by female selection, 198 same theory of, in animals and of flowers and their distribution, Colour, nomenclature of, formerly im- Colour-development as illustrated by DANAIDE, warning colours of, 174 Darwin, Mr., on mode of cross-fertiliza- not too highly rated, 252 on vegetation of Galapagos, 272 islands and S. America, 306 Deserts on line of tropics, 28 De Vry, Mr., on the sugar-palm, 43 F. FEMALE birds, greater brilliancy of Female insects, greater brilliancy of Ferns, preponderance of in Tahiti and Fiji Islands, pale butterflies of, 259 Fishes, causes of general coloration of, Flowering-trunks, probable cause of, 34 comparatively scarce in tropical Flowers, attractive colours of, 228 fertilized by insects, 228 attractive odours of, 230 when sweet-scented not conspi- cuously coloured, 230 233 when wind-fertilized not coloured, relation of colours of, to distribu- and fruits, recent views as to action Flowers of Auckland and Campbell's Foliage, two chief types of, in tropical colours of, 221 Foot of savages does not approach Forest-tree, section of a Bornean, 32 formed from climbers, 32 Forest-trees, characteristics of, 30 Forests, effect of on rainfall and drought, 19 devastation caused by destruction equatorial, 29 undergrowth of tropical, 34 Formica gigas, 81 Foxes, none in Isle of Wight in 1605, 305 Frogs and toads, 116 Frog, with bright colours uneatable, 175 Local causes of colour-development, 216 Lophornis ornatus, very pugnacious, 214 Lord Howe's Island, white rail in, 264 MACAWS, 100 M. Madagascar, white-marked butterflies Madagascar once united to Africa, 325 Male birds, origin of ornamental plum- Male birds which incubate, 212 Males, theory of display of ornaments Malva sylvestris, M. rotundifolia, 233 Mammalia, supposed variations of, com- local resemblances of, in Africa, 262 of miocene period in Euro-Asia, Man, antiquity and origin of, 280 indications of extreme antiquity highly developed at very early antiquity of intellectual, 290 Manicaria saccifera, 41 Mantidæ, 91 Mantis resembling an orchis-flower, 173 Marmosets, 118 Marshall, Messrs. on barbets, 106 Meldola, Mr. R. on variable colouring Meliphagidae in Auckland Isles pro- Melliss, Mr. on flora of St. Helena, 275 between N. America and South A A |