The Origin of Species, Том 2Books, Incorporated, 1900 - Всего страниц: 365 |
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Стр. 285
... fossil species this can rarely be done . We shall , perhaps , best perceive the improbability of our being enabled to connect species by numerous , fine , intermediate , fossil links , by asking ourselves whether , for instance ...
... fossil species this can rarely be done . We shall , perhaps , best perceive the improbability of our being enabled to connect species by numerous , fine , intermediate , fossil links , by asking ourselves whether , for instance ...
Стр. 317
... fossil mammals , buried there in such numbers , are related to South American types . This relationship is even more clearly seen in the wonderful collection of fossil bones made by MM . Lund and Clausen in the caves of Brazil . I was ...
... fossil mammals , buried there in such numbers , are related to South American types . This relationship is even more clearly seen in the wonderful collection of fossil bones made by MM . Lund and Clausen in the caves of Brazil . I was ...
Стр. 417
... fossil links will be discovered , that naturalists will be able to de- cide whether or not these doubtful forms ought to be called varieties ? Only a small portion of the world has been geologically explored . Only organic beings of ...
... fossil links will be discovered , that naturalists will be able to de- cide whether or not these doubtful forms ought to be called varieties ? Only a small portion of the world has been geologically explored . Only organic beings of ...
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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