The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen1AMS Press, 1972 - 479 páginas This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy! |
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Página 152
... look , for instance , to fishes , amongst which some naturalists rank those as highest which , like the sharks , approach nearest to amphibians ; whilst other naturalists rank the common bony or teleostean fishes as the highest ...
... look , for instance , to fishes , amongst which some naturalists rank those as highest which , like the sharks , approach nearest to amphibians ; whilst other naturalists rank the common bony or teleostean fishes as the highest ...
Página 224
... look exclusively to its lineal progenitors ; but this is scarcely ever possible , and we are forced to look to other species and genera of the same group , that is to the collateral descendants from the same parent - form , in order to ...
... look exclusively to its lineal progenitors ; but this is scarcely ever possible , and we are forced to look to other species and genera of the same group , that is to the collateral descendants from the same parent - form , in order to ...
Página 229
... look to much - isolated species , round which , according to the theory , there has been much extinction . Or again , if we take an organ common to all the members of a class , for in this latter case the organ must have been originally ...
... look to much - isolated species , round which , according to the theory , there has been much extinction . Or again , if we take an organ common to all the members of a class , for in this latter case the organ must have been originally ...
Contenido
CHAPTER I | 5 |
VARIATION UNDER NATURE | 51 |
Its bearing on natural selectionThe term used in a wide sense | 75 |
Derechos de autor | |
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The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2016 |
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The Origin of Species by Means of Natural Selection: Or the Preservation of ... Charles Darwin Sin vista previa disponible - 2018 |
Términos y frases comunes
acquired adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young