The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen2AMS Press, 1972 |
Dentro del libro
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Página 109
... living forms or groups , the objection is probably valid . But in a natural classification many fossil species certainly stand between living species , and some extinct genera between living genera , even between genera belonging to ...
... living forms or groups , the objection is probably valid . But in a natural classification many fossil species certainly stand between living species , and some extinct genera between living genera , even between genera belonging to ...
Página 121
... living marsupials of that continent . In South America , a similar relationship is manifest , even to an uneducated eye , in the gigantic pieces of armour , like those of the armadillo , found in several parts of La Plata ; and ...
... living marsupials of that continent . In South America , a similar relationship is manifest , even to an uneducated eye , in the gigantic pieces of armour , like those of the armadillo , found in several parts of La Plata ; and ...
Página 170
... living waters left their living drift on our mountain summits , in a line gently rising from the Arctic lowlands to a great altitude under the equator . The various beings thus left stranded may be compared with savage races of man ...
... living waters left their living drift on our mountain summits , in a line gently rising from the Arctic lowlands to a great altitude under the equator . The various beings thus left stranded may be compared with savage races of man ...
Contenido
CONTENTS OF VOL | 1 |
CHAPTER X | 48 |
CHAPTER XII | 129 |
Derechos de autor | |
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The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1962 |
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1963 |
Términos y frases comunes
accumulated adapted admit adult affinity allied species ancient animals appear Archipelago arctic areas become beds believe birds breeds Cambrian changes characters classification climate closely allied continent crustaceans degree deposited difficulty distant distinct species domestic doubt embryo 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 seeds Silurian slight South America species belonging stage stamens sterility structure successive suppose terrestrial tertiary tion variations varieties whilst widely different wings