562 



INDEX 



Subsidence of isthmus of Panama, 151 



Sumatra, geologj- of, 385 



Sweden, two deposits of "till" in, 121 



Swiitiming powers of inammalia, 74 



Swinhoe, Mr. Robert, researches in For- 

 mosa, 400 



Switzerland, interglacial warm periods in, 

 121 



SylviadsB, overlapping genera of, 29 



Talpida?. a Palsearctic group, 41 

 Tapirs, distribution of, 25 



former wide range of, 393 

 Tarsius, 63 



Tarsius spectrum in Celebes, 456 

 Tasmania and North Australia, resem- 

 blance of, 5 

 route of Arctic plants to, 520 

 Taxodium dutichum in Spitzbergen, 184 

 Temperate climates in Arctic regions, 

 181 

 Australian genera of plants in New 



Zealand, 502 

 Australian species of plants in New 

 Zealand, 502 

 Temperature, how dependent on sun's 

 dista,nce, 129 

 of space, 129 

 Tertiary glacial epochs, evidence against, 

 179 

 warm climates, continuous, 187 

 Test of glaciation at any period, 175 

 Tcstudo abingdonii, 279 

 T. microphyes, 278 

 Tetraogallus, distribution of, 24 

 Thais, a Palsearctic genus, 42 

 Thomson, Sir William, on age of the earth, 

 213 

 Sir Wyville, on oi-gauisms in the 



globigerina-ooze, 89 

 analysis of globigerina-ooze. 91 

 Thryothorus betvickii, discontinuity of. 



68 

 "Till" of Scotland, 112 



several distinct formations of. 121 

 Tits, distribution of species of, 19 

 Torreya, fossil in Spitzbergen, 186 

 Tortoises of the Galapagos, 278 

 Trade-winds, how modified by a glacial 



epoch, 142 

 Tragulida;, 27 

 Travelled blocks, 109 

 Tremarctos, an isolated genus, 29 

 Triassic warm Arctic climate, 200 

 Tribonyx not a New Zealand genus, 



483 

 Trichoptera peculiar to Britain, 355 

 Trogons, distribution of, 28 

 Tropical affinities of New Zealand birds, 

 483 

 character of the New Zealand flora, 



•cause of, 500 

 genera common to New Zealand and 

 Australia, 501 



Turdus, 17, 26 



Tiirdus fuscescetis, variation of, 58, 59 

 Tylor, A., on estimating the rate of denu- 

 dation, 214 

 Tyrannidae, an American family, 50 



U. 



Uraniidse, 28 

 Uropeltidse, 30 



Urotrichus, distribution of, 25 

 Ursus, 26 



' Variation in animals. 57 



I amount of, in N. American "birds, 



; 58 



I Vegetation, local peculiarities of, 185 



i effects of Polar night on, 198 



j Vexperugn serotinus, range of, 14 



' Vireo bellii. supposed discontinuity of, 



' 68 ' 



I Vireonidse, an American family, 49 



\V. 



Wallich, Dr., on liabitat of globigerinae, 



92 

 Warren, Mr. W., information on British 



lepidoptera, 347 

 Water, properties of, in relation to climate, 



131, 133 

 Waterhouse, Mr., on Galapagos beetles, 



284 

 Wales, peculiar fish of, 341 

 Warm climates of northern latitudes, long 



persistence of, 201 

 Watson, Mr. H. C, on the flora of the 

 Azores, 256 

 on peer. liar British plants, 359 

 on vegetation of railway banks, 513 

 Webb, Mr., on comparison of Mars and 



the Earth, 166 

 West Australia, rich flora of, 494 



former extent and isolation of, 497 

 I West Indies, a Neotropical district, 5." 



White, Dr. F. Buchanan, on the Hemiptera 

 [ of St. Helena, 303 



Mr. John, on native accounts of the 

 moa, 477 

 Whitehead, Mr. John, on Bornean birds, 



377 

 Wilson, Mr. Scott B., on binls of the 



Sandwich Islands, 314 

 Winged birds of New Zealand, 482 

 Wingless birds never inhabit continents, 

 i 437 



their evidence against "Lemuria," 



438 

 of New Zealand, 476 

 Wings of struthior.s birds show retrograt'c 

 development, 437 



