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Dogs, fertility of breeds together, | Falconer, Dr., on naturalisation of
plants in India, 60.
on fossil crocodile, 281.
Falkland Island, wolf of, 353.
Fear, instinctive, in birds, 190.
Feet of birds, young molluscs ad.
from slight changes in con.
of crossed varieties, 240.
Fir-trees destroyed by cattle, 60.
pollen of, 182.
Fish, fying, 164.
teleostean, sudden appearance
fresh-water, distribution of,
Fishes, ganoid, now confined to
fresh water, 97.
ganoid, living in fresh water
of southern hemisphere, 337.
Flight, powers of, how acquired,
Flowers, structure of, in relation
of compositæ and ombel.
Forbes, E., on colours of shells,
on abrupt range of shells in
on poorness of palæonto-
logical collections, 258.
on continuous succession of
on distribution during glacial
- on parallelism in time and
correction for a berration, 181. Forests, changes in, in America,
Formation, Devonian, 299.
Formations, intermittont, 269. Glacial period, 828.
Gmelin on distribution, 328.
Gnathodon, fossil, 330.
Godwin-Austen, Mr., on the Malay
Goetho on compensation of growth,
Gooseberry, grafts of, 285.
being closely allied to other Mr., on colours of birds, 120.
on birds of the Galapagos,
on distribution of gener of
Gourds, crossed, 242.
varieties of, acclimatised Grasses, varieties of, 103.
Gray, Dr. Asa, on trees of United
United States, 104.
on rarity of intermediate
on Alpine plants, 328.
Dr. J. E., on striped mulo,
Groups, aberrant, 386.
red, a doubtful species, 45.
on crossed maize and ver correlation of, in domestic
diversified, of same species,
Hair and teeth, correlated, 131.
of Madeira, 351.
Hearne on habits of bears, 165.
on variable parts being Heer, O., on plants of Madeira,
imperfection of the record, Herbert, W., on struggle for exist
on sterility of hybrids, 224.
Hermaphrodites crossing, 87. Hutton, Captain, on crossed geese
poisoned by certain plants, 11. on ombryological succession,
on homologous organs, 894.
on the development of apbis,
Hybrids and mongrels compared,
Hydra, structure of, 171
Increase, rate of, 59.
to selection, 92.
on vegetation at the base of Inheritance, laws of, 12.
at corresponding ages, 13, 78.
blind, in caves, 125.
Instincts, domestic, 193.
Islands, oceanic, 349.
Isolation favourable to selection,
Japan, productions of, 334.
Java, plants of, 836.
Jussieu on classification, 375.
Kerguelen-land, flora of, 842, 858.
P., on reason blended with Kirby on tarsi deficient in beetles,
on Melipona domestica, 202. on storility of hybrids, 221.
on reciprocal crosses, 232.
Kölreuter, on crossing male and Lyell, Sir C., on transport of seeds
on great alternations of cli.
on the distribution of fresh.
of Madeira, naturalised, 862. on land-shells of Madeira, 861.
trees in Nova Scotia, 266.
Madeira, plants of, 97.
beetles of, wingless, 123.
birds of, 851.
Magpie tame in Norway, 191.
Maize, crossed, 242.
Malay Archipelago compared with
mammals of, 855.
Mammæ, rudimentary, 404.
Man, origin of races of, 179.
fossil species of, 304.
on resemblance of child to 323.
Martin, Mr. W. O., on striped
Matteucci, on the electric organs
Matthiola, reciprocal crosses of,
Means of dispersal, 320.
Metamorphism of oldest rocks,
Mice destroying bees, 68.
acclimatisation of, 128.
Migration, bears on first appear-
Miller, Prof., on the cells of bees,
Mirabilis, crosses of, 282.
on tertiary formations of Mistletoe, complex relations of, 8.
Modification of species, how far | Noble, Mr., on fertility of Rhodo-
Nodules, phosphatic, in Luoio
and hybrids compared, 244. Oak, varieties of, 47.
Onites apelles, 122.
Orchis, pollen of, 174.
electric, of fishes, 173.
rudiments of, and nascent,
Ornithorhynchus, 97, 875.
Ostrich not capable of flight, 122.
Ouzel, water, 166.
Owen, Prof., on birds not flying,
on vegetative repetition, 135.
- on variable length of arms in
- on electric organs, 173.
- on fossil horse of La Plata,
from the indigenous specios, on relations of ruminants and
on fossil birds of New Zea.
- on succession of types, 304.
on affinities of the dugong,
on homologous organs, 390.
the metamorphosis of
Pacific Ocean, faunas of, 813.
Pallas on the fertility of the wild
stocks of domestic animals, 28
Paraguay, cattle destroyod by
Parts greatly developed, variable,
degress of utility of 181.