entative
existing ones to each other, 33, 192;
introduced, beating indigenes, 153;
dependent on other organisms rather than on physical surroundings, 185;
graduated complexity in the great classes, 227;
immature, how subject to natural selection, 42, 220, 228;
all descended from a few parent-forms, 52, 252

Organs, perfect, objection to their evolution, 15, 128;
distinct in adult life, indistinguishable in embryo, 42, 218;
rudimentary, 45, 231, 232, 233;
rudimentary, compared to monstrosities, 46, 234;
rudimentary, caused by disuse, 46, 235;
rudimentary, adapted to new ends, 47, 237

Orthogenesis, 241 _n._

Oscillation of level in relation to continents, 33, 34 _n._, 189

Pallas, on parentage of domestic animals, 71

Pampas, imaginary case of farmer on, 32, 184

Perfection, no inherent tendency towards, 227

Plants, _see also_ Flora;
fertilisation, 70;
migration of, to arctic and antarctic regions, 167;
alpine and arctic, migration of, 31, 166;
alpine, characters common to, 162;
alpine, sterility of, 13, 101

PLANTS, NAMES OF:--AEgilops, 58 _n._;
Artichoke (Jerusalem), 79;
Ash, weeping, seeds of, 61;
Asparagus, 79;
Azalea, 13, 59, 97;
Cabbage, 109, 135, 204;
Calceolaria, 11, 99;
Cardoon, 153;
Carrot, variation of, 58 _n._;
Chrysanthemum, 59;
Crinum, 11, 99;
Crocus, 96, 99 _n._;
Cucubalus, crossing, 232;
Dahlia, 21, 59, 63, 69, 74, 110;
Foxglove, 82;
Gentian, colour of flower, 107 _n._;
Geranium, 102;
Gladiolus, crossed, ancestry of, 11;
Grass, abortive flowers, 233;
Heath, sterility, 96;
Hyacinth, colours of, 106;
--feather-hyacinth, 229;
Juniperus, hybridised, 97;
Laburnum, peculiar hybrid, 108;
Lilac, sterility of, 13, 100;
Marigold, style of, 47, 233, 237;
Mistletoe, 6, 86, 87, 90 _n._;
Nectarines on peach trees, 59;
Oxalis, colour of flowers of, 107 _n._;
Phaseolus, cultivated form suffers from frost, 109;
Pine-apple, 207;
Poppy, Mexican, 154;
Potato, 69, 74, 110;
Rhododendron, 97, 99;
Rose, moss, 59;
--Scotch, 69;
Seakale, 79;
Sweet-william, 59;
Syringa, persica and chinensis, _see_ Lilac;
Teazle, 129;
Thuja, hybridised, 97;
Tulips, "breaking" of, 58;
Turnip, Swedish and common, 205;
Vine, peculiar hybrid, 108;
Yew, we