C
Caddis-fly larvæ inhabiting bromelia leaves, 118
Callophis, harmless mimicking poisonous species, 262
Candolle, Alp. de, on variation in oaks, 77
on variability of Papaver bracteatum, 79
Cardinalis virginianus, diagram showing proportionate numbers which vary, 65; variations of, 58
Carpenter, Dr. W.B., on variation in the Foraminifera, 43
Carriers, 91
Caterpillars, resemblance of, to their food plants, 203-205
inedible, 236
Cattle, how they prevent the growth of trees, 18
increase of, in St. Domingo, Mexico, and the pampas, 27
Ceylon, spread of Lantana mixta in, 29
Chaffinch, change of habit of, in New Zealand, 76
Chambers, Robert, on origin of species, 3
Chance rarely determines survival, 123
Change of conditions, utility of, 326
Characters, non-adaptive, 131
transferred from useless to useful class, 132
Charaxes psaphon persecuted by a bird, 235
Chile, numerous red tubular flowers in, 320
Chimpanzee, figure of, 454
Clark, Mr. Edwin, on cause of absence of forests on the pampas, 23
on the struggle for life in the South American valleys, 24
Cleistogamous flowers, 322
Close interbreeding, supposed evil results of, 326
Clover, white, spread of, in New Zealand, 28
Co-adaptation of parts by variation, no real difficulty, 418
Cobra, use of hood of, 262
Coccinella mimicked by grasshopper, (figure), 260
Collingwood, Mr., on butterflies recognising their kind, 226
Coloration, alluring, 210
of birds' eggs, 212
a theory of animal, 288
Colour correlated with sterility, 169
correlated with constitutional peculiarities, 170
in nature, the problem to be solved, 188
constancy, in animals indicates utility, 189
and environment, 190
general theories of animal, 193
animal, supposed causes of, 193
obscure, of many tropical animals, 194
produced by surrounding objects, 195
adaptations, local, 199
for recognition, 217
of wild animals not quite symmetrical, 217 (note)
as influenced by locality or climate, 228
development in butterflies, 274
more variable than habits, 278
and nerve distribution, 290
and tegumentary appendages, 291
of flowers, 308
change of, in flowers when fertilised, 317
in nature, concluding remarks on, 299, 333
of fruits, 304
of flowers growing together contrasted, 318
Complexity of flowers due to alternate adaptation to insect and self-fertilisation, 328
Composite, a, widely dispersed without pappus, 367
Confinement, affecting fertility, 154
Continental and oceanic areas, 346
Continents and oceans cannot have changed places, 345
possible connections between, 349
Continuity does not prove identity of origin, 463
