The Origin of Species by Means of Natural Selection,: Or the Preservation of Favoured Races in the Struggle for LifeAppleton, 1898 - 432 páginas |
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Página vi
... oceanic islands — Absence of Batrachians and of terrestrial Mam- mals - On the relation of the inhabitants of islands to those of the nearest mainland - On colonisation from the nearest source with subsequent modification — Summary of ...
... oceanic islands — Absence of Batrachians and of terrestrial Mam- mals - On the relation of the inhabitants of islands to those of the nearest mainland - On colonisation from the nearest source with subsequent modification — Summary of ...
Página 54
... islands , which have been worn by the waves and pared all round into perpen- dicular cliffs of one or two thousand ... ocean . The same story is told still more plainly by faults , - those great cracks along which the strata have been up ...
... islands , which have been worn by the waves and pared all round into perpen- dicular cliffs of one or two thousand ... ocean . The same story is told still more plainly by faults , - those great cracks along which the strata have been up ...
Página 64
... ocean , the former protecting mantle of rock may not have been very thick . Admitting then that gneiss , mica - schist ... Islands , all conjoined . This region has not been carefully explored , but from the concurrent testi- mony of ...
... ocean , the former protecting mantle of rock may not have been very thick . Admitting then that gneiss , mica - schist ... Islands , all conjoined . This region has not been carefully explored , but from the concurrent testi- mony of ...
Página 86
... islands ; but hardly one truly oceanic island ( with the exception of New Zealand , if this can be called a truly oceanic island ) is as yet known to afford even a remnant of any palæozoic or secondary formation . Hence we may perhaps ...
... islands ; but hardly one truly oceanic island ( with the exception of New Zealand , if this can be called a truly oceanic island ) is as yet known to afford even a remnant of any palæozoic or secondary formation . Hence we may perhaps ...
Página 131
... ocean extends , with not an island as a halting - place for emigrants ; here we have a barrier of another kind , and as soon as this is passed we meet in the eastern islands of the Pacific with another and totally distinct fauna . So ...
... ocean extends , with not an island as a halting - place for emigrants ; here we have a barrier of another kind , and as soon as this is passed we meet in the eastern islands of the Pacific with another and totally distinct fauna . So ...
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Términos y frases comunes
admit affinity allied species ancient animals appear Archipelago arctic areas become believe birds Cambrian changes characters cies classification climate closely allied common progenitor continent crustaceans degree deposited difficulty distant distinct species domestic doubt embryo eral Europe existing extinct fact faunas fertilised fertility flowers formations formerly forms fossil fresh-water Fritz Müller Gärtner genera genus geological period geological record Glacial period groups of species habits hybrids hybrids produced important individuals inhabitants inherited insects instance intermediate intervals land larvæ less living mammals manner marine Marsupials migration modified descendants mongrels mountains natural selection naturalists nearly occur oceanic islands offspring organisation parent parent-form peculiar perfect pistil plants pollen present probably produced quadrupeds reciprocal crosses regions remains remarked reproductive resemblance rocks rudimentary organs sediment seeds Silurian South America stage stamens sterility structure successive suppose terrestrial tertiary theory tion variations varieties whilst widely different wings