356 



IKDEX. 



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 



Thaumastura 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 

 Trochilidfe, 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 

 Tyjpical colours, 179 



Vanda loivii, 51 

 Vampyre-bats, 119 



Variation, how influenced, 142 

 Vegetation, equatorial, 27 

 A^ipers, green, 114 



Vitality a cause of bright colour, 193 



W. 



Waening Colours, theory of, 189 

 Wasps and bees, 9u 

 "Wave-lengths of coloured rays, 180 

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



Karoo, 223 



on Ajuga ophrydis, 223 

 AVebber 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 Avhere black 

 escape, 265 



White colours influencing sense-percep- 

 tion, 265 



White colour doubly prejudicial to 



animals, 266 

 White tropical birds, 110 

 Wilson, Dr. on pottery 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 



Z. 



Zebra, possible use of its stripes, 197 

 Zingiberacese, 47 

 Zoological regions, 314 

 Zoological regions of the New World 

 329 



LONDON : R. CLAY, SONS, AND TAYLOR, BREAD STREET HILL. 



