Darwinism: An Exposition of the Theory of Natural Selection, with Some of Its ApplicationsMacmillan and Company, 1889 - 494 páginas |
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Página ix
... plants — Among animals — Illustrative cases - Succession of trees in forests of Denmark - The struggle for existence on the Pampas - Increase of organisms in a geometrical ratio - Examples of rapid increase of animals - Rapid increase ...
... plants — Among animals — Illustrative cases - Succession of trees in forests of Denmark - The struggle for existence on the Pampas - Increase of organisms in a geometrical ratio - Examples of rapid increase of animals - Rapid increase ...
Página x
... animals - The variability of plants - Species which vary little - Con- cluding remarks Pages 41-82 • CHAPTER IV VARIATION OF DOMESTICATED ANIMALS AND CULTIVATED PLANTS The facts of variation and artificial selection - Proofs of the ...
... animals - The variability of plants - Species which vary little - Con- cluding remarks Pages 41-82 • CHAPTER IV VARIATION OF DOMESTICATED ANIMALS AND CULTIVATED PLANTS The facts of variation and artificial selection - Proofs of the ...
Página xi
... plants — The same in animals - Uses of tails - Of the horns of deer— Of the scale - ornamentation of reptiles ... plants- Cases of the fertility of hybrids and of the infertility of mongrels -The effects of close interbreeding - Mr ...
... plants — The same in animals - Uses of tails - Of the horns of deer— Of the scale - ornamentation of reptiles ... plants- Cases of the fertility of hybrids and of the infertility of mongrels -The effects of close interbreeding - Mr ...
Página xiii
... plants -Dispersal of seeds by the wind - Mineral matter carried by the wind ... animals— Causes of the imperfection of the geological record - Geological ... animals - Cause of extinction of large animals — Indications of general progress ...
... plants -Dispersal of seeds by the wind - Mineral matter carried by the wind ... animals— Causes of the imperfection of the geological record - Geological ... animals - Cause of extinction of large animals — Indications of general progress ...
Página 3
... species , and the numerous links that exist between the most different forms of animals and plants , and also observing that a great many species do vary con- siderably in their forms , colours , and habits , conceived the idea that ...
... species , and the numerous links that exist between the most different forms of animals and plants , and also observing that a great many species do vary con- siderably in their forms , colours , and habits , conceived the idea that ...
Outras edições - Ver tudo
Darwinism: An Exposition of the Theory of Natural Selection, with Some of ... Alfred Russel Wallace Visualização integral - 1890 |
Darwinism: An Exposition of the Theory of Natural Selection, with Some of ... Alfred Russel Wallace Visualização integral - 1890 |
Darwinism: An Exposition of the Theory of Natural Selection ..., Volumes 1-2 Alfred Russel Wallace Visualização integral - 1889 |
Palavras e frases frequentes
abundant adapted adduced allied species America amount animals and plants appears birds breed brilliant butterflies cause characters climate closely allied colours of animals common concealment conspicuous continued cross-fertilisation crossed curious Darwin dicotyledons distinct species domestic animals effects eggs enemies Eocene evidence extinct facts faculty favourable female fertile fertilised flowers genera genus geological groups habits hybrids important increase individuals infertility inhabit insects intercrossing kind larva larvæ less living male mammalia mammals markings marsupials mimicry Miocene mode modified moths natural selection naturalists nests occur offspring organs Origin of Species peculiar pigeons Pliocene pollen portion possess probably produced Professor protectively coloured pupa regions remarkable resemblance seeds self-fertilisation Silurian similar specimens spots sterility structure struggle for existence supposed tail theory tints tion toes trees tropical usually variability variation varied varieties vegetation warning colours whole wild wings Zealand