lls in deep water, 337
Australia, two sets of Northern plants in, 523
South European plants in, 523
Australia and South Africa, supposed connection of, 525
{550}
Australian Alps, indications of glaciation in, 163
birds absent from New Zealand, 483
flora, general features of, 491
richest in temperate zone, 491
recent and derivative in the tropics, 492
its south-eastern and south-western divisions, 493
Sir Joseph Hooker on, 494
geological explanation of, 494
its presence in New Zealand, 498
natural orders of, wanting in New Zealand, 490
orchideae in China, 527
genera of plants in India, 524
plants absent from New Zealand, 488, 490
none in north temperate zone, 527
running wild in Neilgherrie mountains, 528
region, definition of, 45
mammals and birds of, 46
seeds scattered in New Zealand, 508
Aylward, Captain, on glaciation of South Africa, 163
Azores, 247
absence from, of large-fruited trees or shrubs, 260
zoological features of, 248
birds of, 249
insects of, 253
beetles of, 253
land-shells of, 256
flora of, 256
Azores and New Zealand, identical plants in both, 512
Azorean bird-fauna, origin of, 250
fauna and flora, deductions from, 261
plants, facilities for the dispersal of, 260

B.
_Babirusa alfurus_ in Celebes, 456
Badgers, 41
Bahamas contrasted with Florida, 5
Baker, Mr., on flora of Mauritius and the Seychelles, 441
Bali and Lombok, contrasts of, 4
Banca, peculiar species of, 386
_Barbarea precox_ on railway bank, 514
Barn-owl, wide range of, 15
Baron, Rev. R., on the flora of Madagascar, 441
Barriers to dispersal, 73
Batrachia, 30
Bats in Bermuda, 269
Bears of Europe and America, 14
Beaver of Europe and America, 14
Beetles of the Azores, 253
remote affinities of some of, 255
of the Galapagos, 284
of St. Helena, 298
of the Sandwich Islands, 318
peculiar British species of, 351
Bell-birds, distribution of, 24
Bennett, Mr. Arthur, on peculiar British plants, 360
on the vegetation of railway banks, 514
Bentham, Mr., on the compositae of the Galapagos, 288
on the compositae of St. Helena, 307
on the Mascarene compositae, 445
on Sandwich Island compositae, 325
Bermuda, 262
soundings around, 263
red clay of, 265
zoology of, 266
reptiles of, 266
birds of, 266
in