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Eye, structure of, 144.
, correction for aberration, 163,
Eyes reduced in moles, 110.
Fabre, M., on hymenoptera fighting,
, on parasitic sphex, 216.
, on Sitaris, 394.
Falconer, Dr., on naturalisation of
plants in India, 51. , on elephants and mastodons,
and Cautley, on mammals of
sub-Himalayan beds, 311.
Falkland Islands, wolf of, 351.
Faunas, marine, 317.
Fear, instinctive, in birds, 211.
Feet of birds, young molluscs ad-
Fertilisation variously effected, 154,
Fertility of hybrids, 238. , from slight changes in con-
, pollen of, 164.
Fish, flying, 140.
■ , teleostean, sudden appearance
, eating seeds, 327, 346.
, fresh-water, distribution of,
Fishes, ganoid, now confined to fresh
, electric organs of, 150.
, ganoid, living in fresh water,
, of southern hemisphere, 338.
Flat-fish, their structure, 186.
Flower, Prof., on the Larynx, 190.
, on Halitherium, 302.
, on the resemblance between
the jaws of the dog and Thyla-
cinus, 375. , on the homology of the feet of
certain marsupials, 382.
Flowers, of composite and umbelli-
, beauty of, 161.
, double, 230.
Flyseh formation, destitute of or-
Forbes, Mr. D., on glacial action in
, E., on colours of shells, 107.
, on abrupt range of shells in
, on poorness of palseontological
, on continuous succession ot
, on continental extensions, 323.
; on distribution during Glacial
, on parallelism in time and
Forests, changes in, in America, 58.
Formation, Devonian, 305.
, Cambrian, 287.
Formations, thickness of, in Britain,
, intermittent, 277.
Formica rufescens, 216.
, sanguinea, 217.
, flava, neuter of, 231.
Forms, lowly organised, long en-
Emma, ovigerous, of cirripedes, 148.
Fresh-water productions, dispersal
Fries, on species in large genera
in United States, 66.
, varieties of, acclimatised iu
United States, 114.
Galapagos Archipelago, birds of, 348.
, productions of, 353, 355.
Galaxias, its wide range, 343.
Game, increase of, checked by ver-
Gartner, on stei ility of hybrids, 237,
——, on reciprocal crosses, 243.
——, on crossed maize and verbas-
cum, 257, 258.
, on comparison of hybrids and
mongrels, 259, 260.
of fossil mammals in Attica, 301.
Geikie, Mr., on subaerial denudation,
Genealogy, important in classifica-
—, on homologous organs, 382.
, Isidore, on variability of re-
, on correlation, in monstrosi-
, on correlation, 115.
, on variable parts being often
Geographical distribution, 316.
Geography, ancient, 427.
Geology, future progress of, 427.
Gervais, Prof., on Typotherium, 302.
, structure of, 177.
Glacial period, 330.
, affecting the North and South,
Glands, mammary, 189.
, Mr., on colours of birds, 107.
, on instincts of cuckoo, 214.
, on distribution of genera of
Grabs, on the Uria lacrymans, 72.
Grafting, capacity of, 245, 246.
Granite, areas of denuded, 274.
Grasses, varieties of, 88.
Gray, Dr. Asa, on the variability of
, on man not causing varia-
, on sexes of the holly, 74.
, on trees of the United States,
■ , on naturalised plants in the
United States, 89.
—, on activation, 174.
, on rarity of intermediate va-
, Dr. J. E., on striped mule, 128.
Grimm, on asexual reproduction, 387.
, red, a doubtful species, 38.
Growth, compensation of, 117.
, on prehensile tails, 189.
, on the fishes of Panama, 317.
■ , on the range of fresh-water
fishes, 343. , on the limbs of Lepidosiren,
Haast, Dr., on glaciers of New Zea-
Habit, effect of, under domestica-
, effect of, under nature, 108.
, diversified, of same species, 141.
Hackel, Prof., on classification and
the lines of descent, 381.
Harcourt, Mr. E. V., on the birds o!
, on plants of Madeira, 83.
Helix pomatia, 853.
Hemionus, striped, 128.
Hensen, Dr., on the eyes of Cepha-
Herbert, W., on struggle for exist-
, on sterility of hybrids, 238.
Hector, Dr., on glaciers of New Zea-
Hermaphrodites crossing, 76.
Helix, resisting salt water, 353.
Heron eating seed, 346.
Heron, Sir E., on peacocks, 70.
Heusinger, on white animals poi-
Hewitt, Mr., on sterility of first
Hildebrand, Prof., on the self-ste-
Hilgendorf, on intermediate varie-
Himalaya, glaciers of, 335.
, plants of, 337.
Hofmeister, Prof., on the movements
Holly-trees, sexes, of, 73.
Hooker, Dr., on trees of New Zea-
—, on acclimatisation of Hima-
, on flowers of umbelliferse, 116.
, on the position of ovules, 172.
, on glaciers of Himalaya, 335.
, on alga; of New Zealand, 338.
, on vegetation at the base of
the Himalaya, 338.
, on plants of Tierra del Fuego,
, on Australian plants, 337, 355.
, on relations of flora of Ame-
, on flora of the Antarctic lands.
, on the plants of the Gala-
, on glaciers of the Lebanon,
, on man not causing variability,
Hooker, Dr., on plants of mountains
of Fernando Po, 337.
on seeds, on islands, 349.
Hopkins, Mr., on denudation, 274.
Horns, rudimentary, 400.
, proportions of, when young,
Horses destroyed by flies in Para-
, striped, 128.
Horticulturists, selection applied by,
Huber, on cells of bees, 224.
, P., on reason blended with,
instinct, 205. , on habitual nature of instincts,
, on slave-making ants, 216.'
, on Melipona domestica, 220.
Hudson, Mr., on the Ground-Wood-
, on the Molothrus, 215.
Humble-bees, cells, of, 221.
Hunter, J., on secondary sexual
Hutton, Captain, on crossed geese,
Huxley, Prof., on structure of her-
, on the affinities of the Sirenia,
, on forms connecting birds and
, on homologous organs, 386.
, on the development of aphis,
Hybrids and mongrels compared,
Icebergs transporting seeds, 329.
Individuals, many, whether simulta-
Inheritance, laws of, 10.
, at corresponding ages, 10, 67.
Insects, colour of, fitted for their
, sea-side, colours of, 107.
, blind, in caves, 110.
, luminous, 151.
, their resemblance to various
, neuter, 230.
, not varying simultaneously
with structure, 229.
Japan, productions of, 334.
Java, plants of, 337.
Jones, Mr. J. M., on the birds of
Jourdain, M., on the eye-spots of
Jukes, Prof., on subaerial denuda-
Jussieu, on classification, 367.
Kentucky, caves of, 111.
Knight, Andrew, on cause of varia-
Kolreuter, on Intercrossing, 76.
, on the barberry, 77.
, on sterility of hybrids, 237.
, on reciprocal crosses, 243.
■ , on crossed varieties of nico-
, on crossing male and herma-
Lamarck, on adaptive characters,
Landois, on the development of the
wings of insects, 148.
, of Madeira, naturalised, 357.
, resisting salt water, 353.
Languages, classification of, 371.
, on homologies, 385.
Lapse, great, of time, 266.
Laurel, nectar secreted by the leaves,
Laurentian formation, 287.
Laws of variation, 106.
Leech, varieties of, 59.
Leguminosse, nectar secreted by
Lewes, Mr. G. H., on species not hav-
, on the Salamandra atra, 397.
, on many forms of life having
been at first evolved, 425.
Life, struggle for, 49.
Lingula, Silurian, 286.
Linnaeus, aphorism of, 365.
Lion, mane of, 69.
, young of, striped, 388.
Lobelia fulgens, 57, 77.
, sterility of crosses, 238.
Lockwood, Mr., on the ova of the
Locusts transporting seeds, 327. *
Logan, Sir W., on Laurentian forma-
Lowe, Rev. R. J., on locusts visiting
Lowness of structure connected with
, related to wide distribution,
Lubbock, Sir J., on the nerves of
coccus, 35. , on secondary sexual characters,
on a diving hymenopterous
, on affinities, 280.
, on metamorphoses, 386, 389.
Lucas, Dr. P., on inheritance, 9.
Lucas, Dr. P., on resemblance of child
to parent, MI.
existence, 49. , on modern changes of the |
earth, 75.- . on terrestial animals not having
been developed on islands, 180. , on a carboniferous land-shell,
, on strata beneath Silurian
system, 287. , on the imperfection of the
geological record, 289. , on the appearance of species,
, on Barrande's colonies, 291.
, on tertiary formations of
Europe and North America, 298.
, on parallelism of tertiary for-
, on transport of seeds by ice-
, on great alternations of cli-
, on the distribution of fresh-
, on land-shells of Madeira,
Lvell and Dawson, on fossilized trees
'in Nova Scotia, 278.
Macleay, on analogical characters,
373. • -
Madeira, plants of, 83.
, beetles of, wingless, 109.
, fossil land-shells of, 311.
, birds of, 348.
Magpie tame in Norway, 209.
Males fighting, 69.
Maize, crossed, 257.
Malay Archipelago compared with
, mammals of, 352.
Malm, on flat-fish, 186.
Mamma?, their development, 189.
, rudimentary, 397.
Mammals, fossil, in secondary for-
, insular, 351.
Man, origin of, 428.
Manatee, rudimentary nails of, 400.
Marsupials of Australia, 90.
, structure of their feet, 382.
, fossil species of, 310.
Martens, M., experiment on seeds, 325.
Martin, Mr. W. C, on striped mules,
Masters, Dr., on Saponaria, 174.
Metamorphism of oldest rocks, 287.
.n . ,, acclimatisation of, 113.
and teeth, 115.
, on the eyes of cephalopods,
, various objections to Natural
, on abrupt modifications, 201.
, on the resemblance of the
mouse and antechinus, 373.
Modification of species not abrupt,
Moles, blind, 110.
and hybrids compared, 259
Monkeys, fossil, 284, 285,