The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Том 1AMS Press, 1972 - Всего страниц: 479 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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Стр. 26
... breeds several truly- inherited sub - breeds , or species , as he would call them , could be shown him . Great as are the differences between the breeds of the pigeon , I am fully convinced that the common opinion of naturalists is ...
... breeds several truly- inherited sub - breeds , or species , as he would call them , could be shown him . Great as are the differences between the breeds of the pigeon , I am fully convinced that the common opinion of naturalists is ...
Стр. 32
... breeds so often have a somewhat monstrous character . It is also a most favourable circumstance for the production of distinct breeds , that male and female pigeons can be easily mated for life ; and thus different breeds can be kept ...
... breeds so often have a somewhat monstrous character . It is also a most favourable circumstance for the production of distinct breeds , that male and female pigeons can be easily mated for life ; and thus different breeds can be kept ...
Стр. 45
... breeds . But , in fact , a breed , like a dialect of a language , can hardly be said to have a distinct origin . A man preserves and breeds from an individual with some slight deviation of structure , or takes more care than usual in ...
... breeds . But , in fact , a breed , like a dialect of a language , can hardly be said to have a distinct origin . A man preserves and breeds from an individual with some slight deviation of structure , or takes more care than usual in ...
Содержание
CHAPTER I | 5 |
VARIATION UNDER NATURE | 51 |
Its bearing on natural selectionThe term used in a wide sense | 75 |
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The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Недоступно для просмотра - 2016 |
The Origin of Species by Means of Natural Selection: Or the Preservation of ... Charles Darwin Недоступно для просмотра - 2018 |
Часто встречающиеся слова и выражения
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