INDEX. 



A. 



Acacia, 179 



Acacia heterophylla, 413 



Acacia koa, 413 



Acsena in CaliforBia, 495 



AchatineUinse, average range of, 304 



Jccipiter hawaii, 301 



^gialitis sanctoi-helence, 294 



Africa, characteristic mammalia of, 888 



former isolation of, 390 

 Africa and Madagascar, relations of, £90 



early history of, 391 

 African highlands as aiding the migration 



of plants, 492 

 African reptiles absent from Madagascar, 

 389 



Aggressive power of the Scandinavian flora, 

 479 



Air and water, properties of in relation to 



climate, 127 

 Alectorcenas pulcherrimus, 402 

 Allen, Mr. J. A., on variation, 57 

 Allied species occupy separate areas, 449 

 Alpine plants, their advantages as colo- 

 nisers, 472 



Alternations of climate in Switzerland and 



North America, 117 

 Alternations of climate, palaeontological 



evidence of, 115 

 Amilyrhynchus cristatus, 2C9 

 Amazon, limitation of species by, 17, 18 

 American genera of reptiles in Madagascar, 



389 



Amphibia, dispersal of, 73 

 Amphibia of the Seychelles, 402, 403 



introduced, of Mauritius, 409 



of New Zealand, 454 

 Amphioxus, 62 



Amydrus Tristramii, restricted range of, 15 

 Alias Wyvilliana, 301 

 Ancient continental islands, 238, 383 

 Ancient glacial epochs, 163 



what evidence of may be expected, 169 

 Ancient groups in Madagascar, 392 

 Andersson, N. J., on the flora of the Galapa- 

 gos, 277 



Andes, migration of plants along the, 488 

 Andromeda, 179 

 Angr cecum sesquipedale, 411 

 Animal life, effects of glacial epoch on, 113 

 Animal life of Formosa, 373 

 Anoa depressicornis, 427 

 Antarctic continent as a means of plant- 

 dispersion, 489 

 Antarctic islands with perpetual snow, 131 



Antelopes, overlapping genera of, 28 

 Antiquity of Hawaiian fauna and flora, 809 



of land-shells, 76 



of New Zealand, 494 



of plants as affecting their dis- 

 persal, 80 

 Apera arundinacea, 471 

 Apium graveolens in New Zealand, 483 

 Apteryx, species of, 447 

 Arabis hirsuta on railway arch, 482 

 Archaic forms still existing, 221 

 Arctic and Antarctic regions, contrasts of, 



132 



Arctic current, effects of a stoppage of, 

 145 



Arctic plants in the southern hemisphere, 

 477 



Arctic regions, mild climates of, 175 



recent interglacial mild period in, 175 

 Arctic warm climates of Secondary and 



Palaeozoic times, 195 

 Areas of distribution, 13 



separate and overlapping, 17 

 Ascension, former climate and productions 

 of, 292 



Astronomical and geographical causes, com- 

 parative effects of, on climate, 200 



Astronomical causes of change of climate, 

 122 



of glaciation, 136 

 Atlantic isles, peculiar mosses of, 343 

 Atlantosaurus, the largest land-animal, 96 

 Atriplex patula on a railway bank, 483 

 Auchenia, 26 



Austen, Mr. Godwin, on littoral shells in 



deep water, 317 

 Australia, two sets of Northern plants in, 



491 



South European plants in, 491 

 Australia and South Africa, supposed con- 

 nection of, 493 

 Australian birds absent from New Zealand, 

 453 



Australian flora, general features of, 461 

 richest in temperate zone, 461 

 recent and derivative in the tropics, 

 462 



its south-eastern and south-western 



divisions, 463 

 Sir Joseph Hooker on, 463 

 geological explanation of, 464 

 its presence in New Zealand, 467 

 natural orders of wanting in New Zea- 

 land, 460 

 Australian orchidese in China, 495 



L L 2 



