The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen2AMS Press, 1972 |
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Página 55
... successive formations in different parts of Great Britain ; and this is the result : - Palæozoic strata ( not including igneous beds ) Secondary strata Tertiary strata .. .. .. Feet . 57,154 .. .. 13,190 .. 2,240 --making altogether ...
... successive formations in different parts of Great Britain ; and this is the result : - Palæozoic strata ( not including igneous beds ) Secondary strata Tertiary strata .. .. .. Feet . 57,154 .. .. 13,190 .. 2,240 --making altogether ...
Página 61
... successive and peculiar marine faunas will probably be preserved to a distant age . A little reflection will explain why , along the rising coast of the western side of South America , no extensive formations with recent or ter- tiary ...
... successive and peculiar marine faunas will probably be preserved to a distant age . A little reflection will explain why , along the rising coast of the western side of South America , no extensive formations with recent or ter- tiary ...
Página 101
... successive palæo- zoic formations of Russia , Western Europe , and North America , a similar parallelism in the forms of life has been observed by several authors ; so it is , according to Lyell , with the European and North American ...
... successive palæo- zoic formations of Russia , Western Europe , and North America , a similar parallelism in the forms of life has been observed by several authors ; so it is , according to Lyell , with the European and North American ...
Contenido
CONTENTS OF VOL | 1 |
CHAPTER X | 48 |
CHAPTER XII | 129 |
Derechos de autor | |
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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