a, 299
Cretaceous deposits in North Australia, 493, 496
Cretaceous flora of Greenland, 185
of the United States, 189
Croll, Dr. James, on Antarctic icebergs, 136
on winter temperature of Britain in glacial epoch, 141
on diversion of gulf-stream during the glacial epoch, 143
on loss of heat by clouds and fogs, 145
on geographical causes as affecting climate, 148
on ancient glacial epochs, 170
on universality of glacial markings in Scotland, 174
on mild climates of Arctic regions, 189
on ocean-currents, 190, 204
on age of the earth, 213
on mean thickness of sedimentary rocks, 220
on small amount of marine denudation, 225
on buried river-channels, 336
Ctenodus, 69
Cyanopica, distribution of, 24
_Cyanopica cooki_, restricted range of, 15, 24
_Cyanopica cyanus_, 24
_Cynopithecus nigrescens_, in Celebes, 456

D.
Dacelo, 47
Dana on continental upheavals, 88
on chalk in the Sandwich Islands, 90
on elevation of land causing the glacial epoch, 152
on elevation of Western America, 194
on the development of continents, 205
on shore-deposits, 222
on life extermination by cold epochs, 230
Darwin, experiment on _Helix pomatia_, 78
on the permanence of oceans, 100
on cloudy sky of Antarctic regions, 146
on glaciers of the Southern Andes, 147
on geological time, 211
on complex relations of organisms, 226
on oceanic islands, 242
on seeds carried by birds, 257
{553}
experiments on seed-dispersal, 258
on natural history of the Keeling Islands, 286
theory of formation of atolls, 397
on cultivated plants not running wild, 507
Dawkins, Professor Boyd, on animal migrations during the glacial epoch,
120
Dawson, Mr. G. M., on alternations of climate in British Columbia, 121
Professor, on Palaeozoic boulder-beds in Nova Scotia, 201
De Candolle on dispersal of seeds, 80
Deep-sea deposits, 219
Deer in Celebes, 456
_Delphinium ajacis_, on a railway bank, 515
_Dendroeca_, 19
_D. coerulea_, 19
_D. discolor_, 19
_D. dominica_, 19
_Dendroeca coronata_, variation of, 58
Dendrophidae, 29
Denudation destroys the evidences of glaciation, 172
Denudation and deposition as a measure of time, 213
Denudation in river basins, measurement of, 215
Denudation, marine as compared with sub-aerial, 225
Deposition of sediments, how to estimate the av