INDEX. 



499 



Trees, silicilied, size of, 338 

 , time required to rot, 288 



Trcs Monies, 269 



Trichodesmium, 13 



Trigonocephalus, ( JO 



Tristan d'Acunha, 384, 438 



Trochilus, 259 



Tropical scenery, 475 



Tacfmdi, M., on subsidence, 353 



Tubes, siliceous, formed by light- 

 ning, 5G 



Tucutuco, habits of, 48 



, fossil species of, 77 



Tuff, craters of, 358 



, Infusoria in, 473 



Tupungato, volcano of, 311 



Turco, El, 258 



Turkey buzzard, 55, 175, 272 



Turtle, manner of catching, 441 



Type of organization in Galapagos 

 Islands, American, 378 



Types of organization in different 

 countries, constant, 164 



Tyrannus, 131 



Ulloa on hydrophobia, 339 



on Indian buildings, 342 



Unaniie, Dr., on hydrophobia, 



339 

 Uruguay, Eio, 131, 140 



, not crossed by the 



Bizcacha, 117 

 Uspallata range and pass, 317 



Vacas, Rio, 319 

 Valdivia, 285 



, forests of, 286, 289 



Valley of St. Cruz, how excavated, 



172 



, dry, at Copiapo, 341 



Valleys, excavation of, in Chile, 



302, 340 



of Tahiti, 392, 396 



in Cordillera, 302 



of New South Wales, 420 



Valparaiso, 241, 300 

 Vampire bat, 21 

 Vapour from forests, 23 

 Van Diemen's Laud, 428 

 Vanellus Cayauus, 108 

 Vanessa, flocks of, 151 

 Vauikoro, 451, 452, 456 

 Vegetation of St. Helena, changes 



of, 469 



Vegetation on opposite sides of Cor- 

 dillera, 313 



, luxuriant, not necessary 



to support large animals, 80 



Ventana, Sierra, 101 



Verbena melindres, 38 



Villa Vicencio, 317 



Virgularia Patagonica, 93, 192 



Volcanic bombs, 473 



Islands, 8 



phenomena, 298 ] 



Volcanoes near Chiloe, 261, 263, 279, 

 297 



, their presence determined 



by elevation or subsidence, 461 



Vultur aura, 55, 175, 272 



Waders, first colonists of distant 



islands, 365 



Waimate, New Zealand, 404 

 Walckenaer on spiders, 36 

 Walleechu tree, 64 

 Wasps preying on spiders and killed 



by, 33 to 35 



Water, sold at Iquique, 347 

 , fresh, floating on salt, 37, 



440 



Water-hog, 47 

 Waterhouse, Mr., on Ilodents, 47, 



363 



, on the Niata ox, 



139 



-, on the insects of 



Ticrra del Fuego, 227 

 of 



Galapagos, 366, 376 

 Waves, caused by fall of ice, 213, 



234 



from earthquakes, 292, 296 



Weather, connection with earth- 

 quakes, 336 



Weather-board, N. S. Wales, 419 

 Weeds in New Zealand, imported, 



377, 410 



Weight of large quadrupeds, 82 

 Wellington, Mount, 431 

 Wells, ebbing and flowing, 439 

 at Iquique, 349 



West Indies, banks of, 422 



, coral reefs of, 453, 401 



, zoology of, 125 



Whales, oil from, 16 



leaping out of water, 212 



White, Mr., on spiders, '>:! 



