356 



INDEX. 



T. 



TAHITI, preponderance of ferns in, 269 

 Temperature of London and Batavia 

 compared, 6 



of different latitudes, various causes 



of, 7 



Temperature, influenced by heat of soil, 

 8 



influenced by aqueous vapour of 



atmosphere, 9 

 Temperature of tropical and temperate 



zones, cause of, illustrated, 12 

 Tertiary faunas and their relations, 344, 



347 



Tkaumastura cora, veiy pugnacious, 214 

 Timor and Scotland, climates com- 

 pared, 14 

 Timor and Flores, white-marked birds 



of, 263 

 Toucans, 106 

 Tree-frogs, 116 

 Tristan d'Acunha, bright - coloured 



Pelargonium of, 275 

 Trochilidae, 125 

 Trogons, 105 



Tropical vegetation, concluding re- 

 marks on, 65 

 probable causes of its luxuriance 



and variety, 66 

 Mr. Belt on, 67 



Tropical birds, dull-coloured, 110 

 coloration of, 110 

 green, 110 

 Tropics, limitation of, 3 



aspects of animal life in, 121 

 Trunks, variety of, 31, 33 



probable cause of flowering, 34 

 Twilight, short at equator, 21 

 Typical colours, 179 



V. 



Vanda lowii, 51 

 Vampyre-bats, 119 



Variation, how influenced, 142 



Vegetation, equatorial, 27 



Vipers, green, 114 



Vitality a cause of bright colour, 193 



w. 



WARNING COLOURS, theory of, 189 

 Wasps and bees, 90 

 Wave-lengths of coloured rays, 180 

 Weale, Mr. J. P. Mansel, on plants of 



Karoo, 223 



on Ajuga ophrydLs, 223 

 Webber Mr. on food of humming-birds, 



137 

 West-Indian Islands, large and brilliant 



butterflies of, 261 



peculiarly coloured birds of, 262 

 Whip-snakes, 114 

 White animals poisoned where black 



escape, 265 



White colours influencing sense-percep- 

 tion, 265 

 White colour doubly prejudicial to 



animals, 266 



White tropical birds, 110 

 Wilson, Dr. on potteiy from N. American 



mounds, 295 



Winds, influence of on temperature, 11 

 direction of near equator, 11, 12 

 cause of cold near equator, 12, 13 

 Wolves in England show its union with 



continent, 305 

 Woods from equatorial forest-trees, 36 



ZEBRA, possible use of its stripes, 197 

 Zingiberaceae, 47 

 Zoological regions, 314 

 Zoological regions of the New World 

 329 



LONDON I P.. CLAY, SONS, .VXD TAYLOR, bR::.U' SiKEET HILL 



