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The Origin of Species (Barnes & Noble Classics) - Charles Darwin [263]

By Root 1644 0

Game, increase of, checked by vermin

Gärtner on sterility of hybrids ; on reciprocal crosses; on crossed maize and verbascum; on comparison of hybrids and mongrels

Geese, fertility when crossed; upland

Genealogy important in classification

Geoffroy St. Hilaire on balancement; on homologous organs; Isidore, on variability of repeated parts; on correlation in monstrosities 20-21; on correlation ; on variable parts being often monstrous

Geographical distribution

Geology, future progress of

Giraffe, tail of

Glacial period

Gmelin on Distribution

Gnathodon, fossil

Godwin-Austen, Mr., on the Malay Archipelago

Goethe on compensation of growth

Gooseberry, grafts of

Gould, Dr. A., on land-shells; Mr., on colours of birds; on birds of the Galapagos; on distribution of genera of birds

Gourds, crossed

Grafts, capacity of

Grasses, varieties of

Gray, Dr. Asa, on trees of United States ; on naturalised plants in the United States; on rarity of intermediate varieties; on Alpine plants; Dr. J.E., on striped mule

Grebe

Grouse, colours of; red, a doubtful species

Growth, compensation of; correlation of, in domestic products ; correlation of

Habit, effect of, under domestication; effect of, under nature; diversified, of same species

Hair and teeth, correlated

Harcourt, Mr. E.V., on the birds of Madeira

Hartung, M., on boulders in the Azores

Hazel-nuts

Hearne on habits of bears

Heath, changes in vegetation

Heer, O., on plants of Madeira

Helix pomatia

Helosciadium

Hemionus, striped

Herbert, W., on struggle for existence; on sterility of hybrids

Hermaphrodites crossing

Heron eating seed

Heron, Sir R., on peacocks

Heusinger, on white animals not poisoned by certain plants

Hewitt, Mr., on sterility of first crosses

Himalaya, glaciers of; plants of

Hippeastrum

Holly-trees, sexes of

Hollyhock, varieties of, crossed

Hooker, Dr., on trees of New Zealand

Hooker, Dr., on acclimatisation of Himalayan trees; on flowers of umbelliferae; on glaciers of Himalaya; on algae of New Zealand; on vegetation at the base of the Himalaya; on plants of Tierra del Fuego; on Australian plants; on relations of flora of South America ; on flora of the Antarctic lands ; on the plants of the Galapagos

Hooks on bamboos; to seeds on islands

Horner, Mr., on the antiquity of Egyptians

Horns, rudimentary

Horse, fossil, in La Plata

Horses destroyed by flies in La Plata ; striped; proportions of, when young

Horticulturists, selection applied by

Huber on cells of bees; P., on reason blended with instinct; on habitual nature of instincts; on slavemaking ants; on Melipona domestica

Humble-bees; cells of

Hunter, J., on secondary sexual characters

Hutton, Captain, on crossed geese

Huxley, Prof., on structure of hermaphrodites; on embryological succession; on homologous organs; on the development of aphis

Hybrids and mongrels compared

Hybridism

Hydra, structure of

Ibla

Icebergs transporting seeds

Individuals, numbers favourable to selection; many, whether simultaneously created

Insects, colour of, fitted for habitation; sea-side colours of; blind, in caves; luminous; neuter

Instincts, domestic

Intercrossing, advantages of

Japan, productions of

Java, plants of

Jones, Mr. J.M., on the birds of Bermuda

Jussieu on classification

Kentucky, caves of

Kerguelen-land, flora of

Kidney-bean, acclimatisation of

Kidneys of birds

Kirby on tarsi deficient in beetles

Knight, Andrew, on cause of variation

Kölreuter on the barberry; on sterility of hybrids; on reciprocal crosses; on crossed varieties of nicotiana; on crossing male and hermaphrodite flowers

Land-shells, distribution of; of Madeira, naturalised

Languages, classification of

Lapse, great, of time

Larvae

Laurel, nectar secreted by the leaves

Laws of variation

Leech, varieties of

Leguminosae, nectar secreted by glands

Lepidosiren

Life, struggle for

Lingula, Silurian

Linnaeus, aphorism of

Lion, mane of; young of, striped

Lobelia fulgens

Lobelia, sterility of crosses

Loess of the Rhine

Lowness of structure connected with variability

Lowness, related to

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