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INDEX.

pearing logicariod, 3cters, 3652.

ABERBANT groups, 373.

Artichoke, Jerusalem, 129.
Abyssinia, plants of, 326.

Ascension, plants of, 339.
Acclimatisation, 127.

Asclepias, pollen of, 173.
Affinities of extinct species, 287.

Asparagus, 313.
of organic beings, 358.

Aspicarpa, 363.
Agassiz on Amblyopsis, 127.

Asses, striped, 147.
on groups of species suddenly Ateuchus, 123.
pearing, 264, 267.

Audubon on habits of frigate-bird, 166
on embryological successio

on variation in birds'-nests, 189.
on the glacial period, 319.

on heron eating seeds, 338.
on embryological characters, 364. Australia, animals of, 108,
on the embryos of vertebrata, 382.

dogs of, 192.
on parallelism of embryological de-

extinct animals of, 296.
velopment and geological succes-

European plants in, 327.
sion, 390.

Azara on flies destroying cattle, 70.
Algæ of New Zealand, 327.

Azores, flora of, 316.
Alligators, males, fighting, 84.
Amblyopsis, blind fish, 127.

Babington, Mr., on British plants, 49.
America, North, productions allied to Balancement of growth, 133.
those of Europe, 323.

Bamboo with hooks, 176.
boulders and glaciers of, 325.

Barberry, flowers of, 92.
South, no modern formations on Barrande, M., on Silurian colonies, 274.
west coast, 254.

on the succession of species, 284.
Ainmonites, sudden extinctio

on parallelism of palæozoic forma
Anagallis, sterility of, 219.

tions, 287.
Analogy of variations, 143.

on affivities of ancient species, 288.
Ancylus, 336.

Barriers, importance of, 303.
Animals, not domesticated from being Batrachians on islands, 342.
variable, 23.

Bats, how structure acquired, 163.
domestic, descended from several distribution of, 343.
stocks, 24.

Bear, catching water-insects, 165.
acclimatisation of, 129.

Bee, sting of, 180.
of Australia, 108.

queen, killing rivals, 180.
with thicker fur in cold climates, 122. Bees fertilising flowers, 71.
blind, in caves, 125.

hive, not sucking the red clover ;
extinct, of Australia, 296.

89.
Anomma, 213.

hive, cell-making instinct, 200.
Antarctic islands, ancient flora of, 347.

humble, cells of, 200.
Antirrhinum, 145.

parasitic, 195.
Ants attending aphides, 188.

Beetles, wingless, in Madeira, 124.
slave-making instinct, 195.

with deficient tarsi, 123.
Ants, neuter, structure of, 209.

Bentham, Mr., on British plants, 49.
Aphides attended by ants, 188.

on classification, 365.
Aphis, development of, 384.

Berkeley, Mr., on seeds in salt-water, 312
Apteryx, 163

Bermuda, birds of, 341.
Arab horses, 38.

Birds acquiring fear, 189.
Aralo-Caspian Sea, 296.

annually cross the Atlantic, 317.
Archiac, M. de, on succession of species, colour of, on continents, 121.
284.

fossil, in caves of Brazil, 296.

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Birds of Madeira, Bermuda, and Gala- | Classification, 360.
pagos, 340,

Clift, Mr., on the succession of types, 206.
song of males, 84.

Climate, effects of, in checking increase of
transporting seeds, 315.

beings, 67.
waders, 337.

· adaptation of, to organisms, 127.
wingless, 123, 163.

Cobites, intestine of, 170.
with traces of embryonic teeth, 391. Cockroach, 74.
Bizcacha, 306.

Collectione, palæontological, poor, 252.
affinities of, 373.

Colour, influenced by climate, 121.
Bladder for swimming in fish, 170.

in relation to attacks by flies, 177.
Blindriess of cave animals, 126.

Columba livia, parent of domestic pigeons,
Blyth, Mr., on distinctness of Indian cat.

27.

Colymbetes, 336.
on striped Hemionus, 147.

Compensation of growth, 134.
on crossed geese, 224.

Compositæ, outer and inner florets of, 131.
Boar, shoulder-pad of, 84.

male flowers of, 392.
Borrow, Mr., on the Spanish pointer, 88. Conclusion, general, 416.
Bory St. Vincent on Batrachians, 342. Conditions, slight changes in, fayourablo
Bosquet, M., on fossil Chthamalus, 266.

to fertility, 235.
Boulders, erratic, on the Azores, 316. Coot, 166.
Branch , 170.

Coral-islands, seeds drifted to, 315.
Breut, Mr., on house-tumblers, 191.

reefs, indicating movements of earth,
on hawks killing pigeons, 315.

270.
Brewer, Dr., on American cuckoo, 193. Corn-crake, 166.
Britain, mammals of, 344.

Correlation of growth in domestic produc-
Bronn on duration of specific forms, 257.

tions, 18.
Brown, Robert, on classification, 361.

of growth, 130, 177.
Buck man on variation in plante, 17.

Cowslip, 51.
Buzareingues on sterility of varieties, 238. Creation, single centres of, 307.

Crinum, 221.
Cabbage, varieties of, crossed, 93.

Crosses, reciprocal, 228.
Calceolaria, 222.

Crossing of domestic animals, importance
Canary-birds, sterility of hybrids, 223.

in altering breeds, 25.
Cape de Verde islands, 347.

advantages of, 91.
Cape of Good Hope, plants of, 102, 326.

unfavourable to selection, 96.
Carrier-pigeons killed by hawks, 315. Crustacea of New Zealand, 327.
Cassini on flowers of compositæ, 131. Crustacean, blind, 125.
Catasetum, 369.

Cryptocerus, 211.
Cats, with blue eyes, deaf, 18.

Ctenomys, blind, 125.
variation in habits of, 80.

Cuckoo, instinct of, 193.
curling tail when going to spring, 179. Currants, grafts of, 231.
Cattle destroying fir-trees, 69.

Currents of sea, rate of, 313.
destroyed by flies in La Plata, 70. Cuvier on conditions of existence, 184.
breeds of, locally extinct, 103,

on fossil monkeys, 265.
fertility of Indian and European

Fred., on instinct, 186.
breeds, 225.
Cave, inhabitants of, blind, 125.

Dana, Prof., on blind cave-animals, 126.
Centres of creation, 307.

on relations of crustaceans of Japan,
Cephalopodæ, development of, 384.

324.
Cervulus, 224

on crustaceans of New Zealand, 327.
Cetacea, teeth and hair, 131.

De Candolle on struggle for existence, 61.
Ceylon, plants of, 326.

on umbelliferæ, 132.
Chalk formation, 282.

on general affinities, 374.
Characters, divergence of, 103.

Alph, on low plants, widely dis-
sexual, variable, 141.

persed, 353.
adaptive or analogical, 371.

on widely-ranging plants being va.
Charlock, 74.

riable, 54.
Checks to increase, 66.

on naturalisation, 107.
mutual, 69.

on winged seeds, 133.
Chickers, instinctive tameness of, 192.

on Alpine species suddenly becom.
Chthamalinæ, 253.

ing rare, 157.
Chthamalus, cretacean species of, 266.

on distribution of plants with large
Circumstances favourable to selection of

seeds, 314.
domestic products, 42.

on vegetation of Australia, 330.
to natural selection, 95.

on fresh-water plants, 336.
Cirripedes capable of crossing, S

on insular plants, 339.
carapace aborted, 134.

Degradation of coast rocks, 248.
their ovigerous frena, 172.

Denudation, rate of, 250.
fossil, 266.

of oldest rocks, 269.
larv. of, 383.

Development of ancient forms, 293.

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Devonian system, 292.

| Fertility of hybrids, 221.
Dianthus, fertility of crosses, 226.

from slight changes in conditions,
Dirt on feet of birds, 316.

235.
Dispersal, means of, 311.

of crossed varieties, 236.
during glacial period, 318.

Fir-trees destroyed by cattle, 69.
Distribution, geographical, 302.

pollen of, 181.
means of, 311.

Fish, flying, 163.
Disuse, effects of, under nature, 122.

teleostean, sudden appearance of, 267.
Divergence of character, 103.

eating seeds, 337.
Division, physiological, of labour, 107.

fresh-water, distribution of, 335.
Dogs, hairless, with imperfect teeth, 18. Fishes, ganoid, now confined to fresh
descended from several wild stocks,

water, 100.
23.

electric organs of, 172.
domestic instincts of, 190.

ganoid, living in fresh water, 281.
inherited civilization of, 192.

of southern hemisphere, 327.
fertility of breeds together, 224. Flight, powers of, how acquired, 163.
of crosses, 236.

Flowers, structure of, in relation to cross-
proportions of, when young, 386.

irg, 91.
Domestication, variation under, 14.

of compositæ and umbelliferæ, 131.
Dowving, Mr., on fruit-trees in America, 81. Forbes, E., on colours of shells, 121.
Downs, North and South, 250.

on abrupt range of shells in depth,
Dragon-flies, intestines of, 170.

157.
Drift-timber, 314.

on poorness of palæontological col.
Driver-ant, 213.

lections, 252.
Drones killed by other bees, 180.

on continuous succession of genera,
Duck, domestic, wings of, reduced, 17.

276.
logger-headed, 163.

on continental extensions, 311.
Duckweed, 336.

on distribution during glacial period,
Dugong, affinities of, 360.

319.
Duig-beetles with deficient tarsi, 124.

on parallelism in time and space,356.
Dyticus, 336.

Forests, changes in, in America, 72.

Formation, Devonian, 292.
Earl, Mr. W., on the Malay Archipelago, Formations, thickness of, in Britain, 249.

intermittent, 254.
Ears, drooping, in domestic animals, 17. Formica rufescens, 195.
Rudimentary, 394.

sanguinea, 195.
Earth, seeds in rools of trees, 314.

flava, neuter of, 212.
Eciton, 211.

Frena, ovigerous, of cirripedes, 172.
Economy of organisation, 134.

Fresh-water productions, dispersal of,
Edentata, teeth and hair, 131.

334.
fossil species of, 296.

Fries on species in large genera being
Edwards, Milne, on physiological divisions

closely allied to other species, 57.
of labour, 107.

Frigate-bird, 166.
on gradations of structure, 173. Frogs on islands, 342.

on embryological characters, 364. Fruit-trees, gradual improvement of, 40.
Egge, young bırds escaping from, 83.

in United States, 81.
Electric organs, 172.

varieties of, acclimatised in United
Elephant, rate of increase, 63.

States, 129.
of glacial period, 128.

Fuci, crossed, 228.
Embryology, 38

Fur, thicker in cold climates, 132.
Existence, struggle for, 60.

Furze, 582.
conditions of, 184.
Extinction, 277.

Galapagos Archipelago, birds of, 340.
as bearing on natural selection, 102. productions of, 347, 348.
of domestic varieties, 103.

Galeopithecus, 162.
Eye, structure of, 167.

Game, increase of, checked by vermin, 67.
correction for aberration, 180.

Gartner on sterility of bybrids, 219, 225.
Eyes reduced in moles, 125.

on reciprocal crosses, 228.

on crossed maize and verbascum,
Fabre, M., on parasitic sphex, 195.

238.
Falconer, Dr., on naturalisation of plants on comparison of hybrids and mon
in India, 64.

grels, 240.
on fossil crocodile, 274.

Geese, fertility when crossed, 224.
on elephants and mastodons, 292.

upland, 166.
Falkland Island, wolf of, 343.

Genealogy important in classification, 370.
Faults, 250.

Geoffroy St. Hilaire on balancement, 183.
Faunas, marine, 304.

on homologous organs, 378.
Fear, instinctive, in birds, 189.

Isidore, on variability of repeated
Feet of birds, young molluscs adhering to,

parts, 135.
336.

on correlation in monstrosities, 18.

94.

Geoffroy on correlation, 131.

| Hooker, Dr., on acclimatisation of Hima
on variable parts being often mon.

layan trees, 127.
strous, 140,

on flowers of umbelliferæ, 132.
Geographical distribution, 302.

on glaciers of Himalaya, 324.
Geography, ancient, 422.

oa algæ of New Zealai.d, 327.
Gevlogy, future progress of, 421.

on Vegetation at the base of the
imperfect on of the record, 245.

Himalaya, 329.
Giraffe, tail of, 174.

on plants of Tierra del Fuego, 326,
Glacial period, 318.

329.
Gmelin on distribution, 318.

on Australian plants, 327, 347.
Gnathodou, fossil, 321.

on relations of flora of South Amer-
Godwin-Austen, Mr., on the Malay Archi-

ica, 330.
pelago, 262.

on flóra of the Antarctic lands, 341,
Goethe on compensation of growth, 133.

347.
Gooseberry, grafts of, 231.

on the plants of the Galapagos, 341,
Gould, Dr. A., on land-shells, 345.

347.
Mr., on colours of birds, 121.

Hooks on bamboos, 176.
on birds of the Galapagos, 347.

to seeds on islands, 342.
on distribution of genera of birds, Horner, Mr., on the antiquity of Egyp-
352.

tians, 23.
Gourds, crossed, 238.

Horns, rudimentary, 394.
Grafts, capacity of, 231.

Horse, fossil, in La Plata, 278.
Grasses, varieties of, 105.

Horses destroyed by flies in La Flata, 70.
Gray, Dr. Asa, on trees of United States,

striped, 147.

proportions of, when young, 386.
on naturalised plants in the United Horticulturists, selection applied by, 35.
States, 107.

Huber on cells of bees, 205.
on rarity of intermediate varieties, P., on reason blended with instinct,
158.

186.
on Alpine plants, 318.

on habitual nature of instincts, 186.
Dr. J. E., on striped mule, 149.

on slave-making ants, 195.
Grebe, 165.

on Melipona domestica, 200.
Groups, aberrant, 373.

Humble-bees, cells of, 200.
Grouse, colours of, 81.

Hunter, J., on secondary sexual charac-
red, a doubtful spec'es, 50.

ters, 136.
Growth, compensation of. 134.

Hutton, Captain, on crossed geese, 224.
correlation of, in domestic products, Huxley, Prof., on structure of hermaph.
18.

rodites, 94.
correlation of, 130

on embryological succession, 295.

on homologous organs, 381.
Habit, effect of, under lomestication, 17. on the developmeut of aphis, 384.
effect of, under nature, 122.

Hybrids and mongrels compared, 239.
diversified, of same species, 164. Hybridism, 217.
Hair and teeth, correlated, 131.

Hydra, structure of, 170.
Harcourt, Mr. 'E. V., on the birds of Ma-
deira, 340.

Ibla, 134.
Hartung, M., on boalders in the Azores, Icebergs transporting seeds, 316.
317.

Increase, rate of, 63.
Hazel-nuts, 313.

Individuals, numbers favourable to seleo.
Hearne on habits of bears, 165.

tion, 96.
Heath, changes in vegetation, 70.

many, whether simultaneously cre.
Heer, O., on plants of Madeira, 100.

ated, 310.
Helix pomatia, 346.

Inheritance, laws of, 19.
Helosciadium, 313.

at corresponding ages, 20, 82.
Hemionus, striped, 147.

Insects, colour of, fitted for habitations
Herbert, W., on struggle for existence, 61.

81.
on sterility of hybrids, 220.

sea-side, colours of, 121.
Hermaphrodites crossing, 91.

blind, in caves, 126.
Heron eating seed, 338.

luminous, 173.
Heron, Sir R., on peacocks, 84.

neuter, 209.
Heusinger on white animals not poisoned Instinct, 185.
by certain plants, 18.

Instincts, domestic, 190.
Hewitt, Mr., on sterility of first crosses, Intercrossing, advantages of, 90.

Islands, oceanic, 338.
Himalaya, glaciers of, 324.

Isolation favourable to selection, 97.
plants of, 326.
Hippeastrum, 221.

Japan, productions of, 324.
Holly-trees, sexes of, 88.

Java, plants of, 326.
Hollyhock, 'varieties of, crossed, 239. Jones, Mr. J. M., on the birds of Bermu-
Hooker, Dr., on trees of New Zealand, 94.

da, 340.

malayaits of 221. f, 88.

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Jussieu on classification, 363.

| Madeira, fossil land-shells of, 296.

birds of, 340.
Kentucky, caves of, 125.

Magpie tame in Norway, 189.
Kerguelen-land, flora of, 331, 347.

Maize, crossed, 238.
Kidney-bean, acclimatisation of, 129. Malay Archipelago compared with Eu.
Kidneys of birds, 131.

rope, 262.
Kirby on tarsi deticient in beetles, 123.

mammals of, 344.
Knight, Andrew, on cause of variation, 14. Malpighiaceæ, 363.
Kolreuter on the barberry, 92.

Mammæ, rudimentary, 392.
on sterility of hybrids, 218.

Mammals, fossil, in secondary formation,
on reciprocal crosses, 228.

265.
on crossed varieties of nicotiana, 239. insular, 343.
on crossing male and hermaphrodite Man, origin of races of, 178.
flowers, 392.

Manatee, rudimentary nails of, 394.

Marsupials of Australia, 107.
Lamarck on adaptive characters, 371.

fossil species of, 296.
Land-shells, distribution of, 346.

Martens, M., experiment on seeds, 315.
of Madeira, naturalised, 350.

Martin, Mr. W. C., on striped mules, 148.
Languages, classification of, 367.

Matteuchi on the electric organs of rays,
Lapse, great, of time, 247.

172.
Larvæ, 382

Matthiola, reciprocal crosses of, 228.
Laurel, nectar secreted by the leaves, 88. Means of dispersal, 311.
Laws of variation, 120.

Melipona domestica, 200.
Leech, varieties of, 73.

Metamorphism of oldest rocks, 269.
Leguminosa, nectar secreted by glands, 88. Mice destroying bees, 72.
Lepidosiren, 100, 288.

. acclimatisation of, 128.
Life, struggle for, 60.

Migration, bears on first appearance of
Lingula, Silurian, 268.

fossils, 259
Linnæus, aphorism of, 360.

Miller, Prof., on the cells of bees, 201.
Lion, mane of, 84.

Mirabilis, crosses of, 228.
young of, striped, 382,

Missel-thrush, 74.
Lobelia fulgens, 71, 92.

Misseltoe, complex relations of, 11.
Lobelia, sterility of crosses, 221.

Mississippi, rate of deposition at mouth,
Loess of the Rhine, 335.

249.
Lowness of structure connected with va- Mocking-thrush of the Galapagos, 350.
riability, 135.

Moditication of species, how far applica-
Lowness, related to wide distribution, 353.

ble, 418.
Lubbock, Mr., on the nerves of coccus, 47. Moles, blind, 125.
Lucas, Dr. P., on inheritance, 19.

Mongrels, fertility and sterility of, 236.
on resemblance of child to parent, and hybrids compared, 239.
242.

Monkeys, fossil, 265.
Lund and Clausen on fossils of Brazil, 296. Monocunthus, 369.
Lyell, Sir C., on the struggle for existence, Mons, Van, on the origin of fruit-trees, 32.
61.

Moquin-Tandon on sea-side plants, 121.
on modern changes of the earth, Morphology, 377.
on measure of denudation, 249. Mozart, musical powers of, 186.
on a carboniferous land-shell, 253. Mud, seeds in, 337.
on fossil whales 265.

Mules, striped, 148.
on strata beneath Silurian system, Müller, Dr. F., on Alpine Australian
268.

plants, 327.
on the imperfection of the geological Murchison, Sir R., on the formations of
record, 271.

Russia, 253.
on the appearance of species, 273.

on azoic formations, 268.
on Barrande's colonies, 274.

on extinction, 277.
on tertiary formations of Europe and Mustela vison, 161.
North America, 282.

Myanthus, 369.
on parallelism of tertiary formations, Myrmecocystus, 211.
287.

Myrmica, eyes of, 213.
on transport of seeds by icebergs,
317.

Naile, rudimentary, 393.
on great alternations of climate, 332. Natural history, future progress of, 419.
on the distribution of fresh-water

selection, 77.
shells, 336.

system, 360.
on land-shells of Madeira, 350. Naturalisation of forms distinct from the
Lyell and Dawson on fossilised trees in

indigenous species, 107.
Nova Scotia, 259.

in New Zealand, 180.

Nautilus, Silurian, 268.
Macleay on analogical characters, 371. Nectar of plants, 88.
Madeira, plants of, 100.

Nectaries, how formed, 88.
beetles of, wingless, 124.

Nelumbium luteum, 337.

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