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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 óf, 853.
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, 66.
Fish, dying, 164.
-teleostean, sudden appearance
- fresh-water, distribution of,
Fishes, ganoid, now. confined to
fresh water, 97.
- ganoid, living in fresh water
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
logical collections, 258.
- on continuous succession of
on continental extensions.
-- on distribution during glacial
- on parallelism in time and
Formation, Devonian, 299..
Formations, intermittont, 269. Glacial period, 828.
Gmelin on distribution, 328.
Gnathodon, fossil, 830.
Godwin-Austen, Þr., on the Malay
Goethe on compensation of growth,
Gooseberry, grafts of, 235.
being closely allied to other - Nr., on colours of birds, 120.
- on birds of the Galapagos,
con distribution of genera 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, 828.
Groups, aberrant, 886.
red, a doubtful species, 45.
- diversified, of same species,
Hair and teeth, correlated, 181.
of Madeira, 851.
Heame on habits of bears, 165.
on variable parts being Heer, O., on plants of Madeira,
- 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, 358.
on Melipona domestica, 202. on storility of hybrids, 221.
on reciprocal crosses, 232.
Kölrouter, on crossing male and Lyell, Sir C., on transport of seeds
on great alternations of cli.
on the distribution of fresh.
on land-shells of Madeira, 861.
trees in Nova Scotia, 266.
Madeira, plants of, 97.
- beetles of, wingless, 128.
birds of, 351.
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. C., on striped
Matteucci, on the electric organs
Matthiola, reciprocal crosses of,
Means of dispersal, 320.
Metamorphism of oldest rocks,
Mice destroying bees, 68.
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.
system: 27 imperfection of the
Modification of species, how far | Noble, Mr., on fertility of Rhodo-
Nodules, phosphatic, in cuoio
and hybrids compared, 244. Oak, varieties of, 47.
Onites spelles, 122.
Orchis, pollen of, 174.
electric, of fishes, 173.
- homologous, 390.
- rudiments of, and nascent,
Ornithorhynchus, 97, 375.
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.
_ on the metamorphosis of
Pacific Ocean, faunas of, 313.
stocks of domestic animals, 228
Paraguay, cattle destroyed by
Parts greatly developed, variable,
| degress of utility of 181.