Darwinism: An Exposition of the Theory of Natural Selection, with Some of Its ApplicationsMacmillan and Company, 1889 - 494 páginas |
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Página 24
... remarkable as a manifestation of harmony and law , and a striking example of the marvellous power which plants , like animals , possess , of adapting themselves to the local peculiarities of their habitat , whether in the fertile shades ...
... remarkable as a manifestation of harmony and law , and a striking example of the marvellous power which plants , like animals , possess , of adapting themselves to the local peculiarities of their habitat , whether in the fertile shades ...
Página 28
... remarkable is the increase of rabbits both in New Zealand and Australia . No less than seven millions of rabbit - skins have been exported from the former country in a single year , their value being £ 67,000 . In both countries , sheep ...
... remarkable is the increase of rabbits both in New Zealand and Australia . No less than seven millions of rabbit - skins have been exported from the former country in a single year , their value being £ 67,000 . In both countries , sheep ...
Página 29
... remarkable . The common knot- grass ( Polygonum aviculare ) grows most luxuriantly , single plants covering a space 4 or 5 feet in diameter , and send- ing their roots 3 or 4 feet deep . A large sub - aquatic dock ( Rumex obtusifolius ) ...
... remarkable . The common knot- grass ( Polygonum aviculare ) grows most luxuriantly , single plants covering a space 4 or 5 feet in diameter , and send- ing their roots 3 or 4 feet deep . A large sub - aquatic dock ( Rumex obtusifolius ) ...
Página 50
... remarkable memoir : " On the Mammals and Winter Birds of East Florida , with an examina- tion of certain assumed specific characters in Birds , and a sketch of the Bird Fauna of Eastern North America , " published in the Bulletin of the ...
... remarkable memoir : " On the Mammals and Winter Birds of East Florida , with an examina- tion of certain assumed specific characters in Birds , and a sketch of the Bird Fauna of Eastern North America , " published in the Bulletin of the ...
Página 62
... this approach to an equable spreading of the variations is still more apparent ; while in Fig . 12 , where fifty - eight specimens of Cardinalis virginianus are registered , we see a remarkable spreading out 62 CHAP . DARWINISM.
... this approach to an equable spreading of the variations is still more apparent ; while in Fig . 12 , where fifty - eight specimens of Cardinalis virginianus are registered , we see a remarkable spreading out 62 CHAP . DARWINISM.
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