On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for LifeAppleton, 1898 |
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Página vi
... South • 129 CHAPTER XIII . GEOGRAPHICAL DISTRIBUTION - continued . Distribution of fresh - water productions - On the inhabitants of oceanic islands — Absence of Batrachians and of terrestrial Mam- mals - On the relation of the ...
... South • 129 CHAPTER XIII . GEOGRAPHICAL DISTRIBUTION - continued . Distribution of fresh - water productions - On the inhabitants of oceanic islands — Absence of Batrachians and of terrestrial Mam- mals - On the relation of the ...
Página 10
... South America , all are quite fertile together ; but analogy makes me greatly doubt , whether the sev- eral aboriginal species would at first have freely bred together and have produced quite fertile hybrids . So again I have lately ...
... South America , all are quite fertile together ; but analogy makes me greatly doubt , whether the sev- eral aboriginal species would at first have freely bred together and have produced quite fertile hybrids . So again I have lately ...
Página 34
... South American indigenous domes- tic dogs do not readily unite with European dogs , the explanation which will occur to every one , and probably the true one , is that they are descended from 34 [ CHAP . IX . FERTILITY OF VARIETIES.
... South American indigenous domes- tic dogs do not readily unite with European dogs , the explanation which will occur to every one , and probably the true one , is that they are descended from 34 [ CHAP . IX . FERTILITY OF VARIETIES.
Página 61
... South American coasts , which have been upraised several hundred feet within the recent period , than the absence of any recent de- posits sufficiently extensive to last for even a short geological period . Along the whole west coast ...
... South American coasts , which have been upraised several hundred feet within the recent period , than the absence of any recent de- posits sufficiently extensive to last for even a short geological period . Along the whole west coast ...
Página 62
... South America , which has been bulky enough to resist such degradation as it has as yet suffered , but which will hardly last to a dis- tant geological age , was deposited during a downward oscillation of level , and thus gained ...
... South America , which has been bulky enough to resist such degradation as it has as yet suffered , but which will hardly last to a dis- tant geological age , was deposited during a downward oscillation of level , and thus gained ...
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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