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
... pigeons might be chosen , which , if shown to an ornithologist , and he were told that they were wild birds , would certainly be ranked by him as well - defined species ... pigeons are known ; and these 26 [ CHAP . I. DOMESTIC PIGEONS .
... pigeons might be chosen , which , if shown to an ornithologist , and he were told that they were wild birds , would certainly be ranked by him as well - defined species ... pigeons are known ; and these 26 [ CHAP . I. DOMESTIC PIGEONS .
Стр. 31
... pigeons have been watched and tended with the utmost care , and loved by many people . They have been domesticated for thousands of years in several quarters of the world ; the earliest known ... Pigeons CHAP . I. ] 31 DOMESTIC PIGEONS .
... pigeons have been watched and tended with the utmost care , and loved by many people . They have been domesticated for thousands of years in several quarters of the world ; the earliest known ... Pigeons CHAP . I. ] 31 DOMESTIC PIGEONS .
Стр. 32
... Pigeons were much valued by Akber Khan in India , about the year 1600 ; never less than 20,000 pigeons were taken with the court . " The monarchs of Iran and Turan sent him some very rare birds ; " and , continues the courtly historian ...
... Pigeons were much valued by Akber Khan in India , about the year 1600 ; never less than 20,000 pigeons were taken with the court . " The monarchs of Iran and Turan sent him some very rare birds ; " and , continues the courtly historian ...
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