The Origin of Species, Том 2Books, Incorporated, 1900 - Всего страниц: 365 |
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Стр. 330
... climate , might have been a high road for migra- tion , when the climate was different . I shall , however , presently have to discuss this branch of the subject in some detail . Changes of level in the land must also have been ...
... climate , might have been a high road for migra- tion , when the climate was different . I shall , however , presently have to discuss this branch of the subject in some detail . Changes of level in the land must also have been ...
Стр. 338
... climate . The ruins of a house burned by fire do not tell their tale more plainly . than do the mountains of Scotland and Wales , with their scored flanks , polished surfaces , and perched bowlders , of the icy streams with which their ...
... climate . The ruins of a house burned by fire do not tell their tale more plainly . than do the mountains of Scotland and Wales , with their scored flanks , polished surfaces , and perched bowlders , of the icy streams with which their ...
Стр. 340
... climate before the commencement of the Glacial period . At this , the newer Pliocene period , the majority of the inhabitants of the world were specifically the same as now , and we have good reason to believe that the climate was ...
... climate before the commencement of the Glacial period . At this , the newer Pliocene period , the majority of the inhabitants of the world were specifically the same as now , and we have good reason to believe that the climate was ...
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Часто встречающиеся слова и выражения
adapted admit affinity ancient animals appear Archipelago areas become believe belonging birds Cambrian characters classification climate closely allied species common continent creation crustaceans degree deposits descent with modification developed difficulty distant distinct species domestic doubt embryo Europe existing extinct facts faunas 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 INDIANENSIS individuals inhabitants inherited insects instance intermediate intervals land larvæ less living mammæ mammals manner marine Marsupials MDCCCXX migration modified descendants mongrels mountains natural selection naturalists nearly oceanic islands offspring parent peculiar perfect pistil plants pollen present probably produced progenitor quadrupeds reciprocal crosses regions remains remarked reproductive resemblance rocks rudimentary organs seeds SIGILLUM Silurian South America stage stamens sterility structure successive suppose terrestrial tertiary theory of natural tion variations varieties VERITAS whole widely different