Gosse, Mr. P.H., on variation in the sea-anemones, 43
on sea-anemone and bullhead, 265

Gould, Mr., on colours of coast and inland birds, 228

Grant Allen, on forms of leaves, 133
on insects and flowers, 332

Graphite in Laurentian implies abundant plant life, 398

Gray, Dr. Asa, on naturalised plants in the United States, 110
Dr. J.E., on variation of skulls of mammalia, 71

Great fertility not essential to rapid increase, 30

Great powers of increase of animals, 27

Green colour of birds in tropical forests, 192

Grouse, red, recent divergence of, 106

Gulick, Rev. J.T., on variation of land-shells, 43
on isolation and variation, 147, 150
on divergent evolution, 148

=H=

Habits of animals, variability of, 74

Hairy caterpillars inedible, 237

Hanbury, Mr. Thomas, on a remarkable case of wind
conveyance of seed, 373 (note)

Hansten-Blangsted, on succession of trees in Denmark, 21

Harvest mice, prehensile tails of young, 136

Hawkweed, species and varieties of British, 77

Hector, Sir James, use of horns of deer, 137

Heliconidae, warning colours of, 234
mimicry of, 240

Helix nemoralis, varieties of, 43
hortensis, varieties of, 43

Hemsley, Mr., on rarity of spines in oceanic islands, 432

Henslow, Professor G., on vigour of self-fertilised plants, 323
on wind-fertilised as degradations from insect-fertilised flowers, 324
on origin of forms and structures of flowers, 434 (note)

Herbert, Dean, on species, 6
on plant hybrids, 164

Herbivora, recognition marks of, 218

Heredity, 11
Weismann's theory of, 437

Herschel, Sir John, on species, 3

Hooker, Sir Joseph, on attempts at naturalising Australian
plants in New Zealand, 16

Home, Mr. C, on inedibility of an Indian locust, 267

Horns of deer, uses of, 136

Horse tribe, pedigree of, 384
ancestral forms of, 386

Humming-birds, recognition marks of, 226

Huth, Mr., on close interbreeding, 160

Huxley, Professor on the struggle for existence, 37
on fossil crocodiles, 383
on anatomical peculiarities of the horse tribe, 384
on development of vertebrates, 448
on early man, 456
on brains of man and the gorilla, 457

Hybridity, remarks on facts of, 166
summary on, 184

Hybrids, infertility of, supposed test of distinct species, 152
fertility of, 159
fertile among animals, 162
between sheep and goat, 162
fertile between distinct species of moths, 163
fertile among pla