 Btate of nature. Almost every part of every organic being is so beautifully related to its complex conditions of life that it seems as improbable that any part should have been suddenly produced perfect, as that a complex machine should have been invented...  The Breeding of Animals - 第 151 頁Frederick Blackmar Mumford 著 - 1917 - 310 頁完整檢視 - 關於此書
 | 1909 - 828 頁
...one supposes that our choicest productions have been produced by a single variation from one stock." It may be doubted whether sudden and considerable deviations of structure such as are occasionally seen in our domestic productions, more especially with plants, are ever permanently... | |
 | Charles Darwin - 1875 - 504 頁
...for at least a few generations ? and in this case I presume that the form would be called a variety. It may be doubted whether sudden and considerable...with plants, are ever permanently propagated in a btate of nature. Almost every part of every organic being is so beautifully related to its complex... | |
 | Charles Darwin - 1882 - 494 頁
...for at least a few generations "i and in this case I presume that the form would be called a variety. It may be doubted whether sudden and considerable...with plants, are ever permanently propagated in a Btate of nature. Almost every part of every organic being is so beautifully related to its complex... | |
 | William Miller - 1883 - 378 頁
...it be any better — that the changes have been sudden and considerable, and ' have been evolved 1 ' It may be doubted whether sudden and considerable...plants, are ever permanently propagated in a state »f nature. Almost every part of every organic being is so beautifully related to its complex conditions... | |
 | Charles Darwin - 1909 - 586 頁
...the form would be called a variety. It may be doubted whether sudden and considerable devi58 ations of structure such as we occasionally see in our domestic productions, more especially with plants, arc ever permanently propagated in a state of nature. Almost every part of every organic being is so... | |
 | 1909 - 784 頁
...one supposes that our choicest productions have been produced by a single variation from one stock.2' It may be doubted whether sudden and considerable deviations of structure such as are occasionally seen in our domestic productions, more especially with plants, are ever permanently... | |
 | Charles Darwin - 1993 - 836 頁
...'lt may perhaps be doubted whether monstrosities, or such sudden and great deviations of structure as we occasionally see in our domestic productions,...ever permanently propagated in a state of nature.' (Origin 3d ed., p. 46; Peckham ed. 1959, p. 121). 5 CD discussed this point in Origin 3d ed., p. 46.... | |
 | Charles Darwin - 1993 - 836 頁
...'It may perhaps be doubted whether monstrosities, or such sudden and great deviations of structure as we occasionally see in our domestic productions, more especially with plants, are ever permanendy propagated in a state of nature.' (Origin 3d ed., p. 46; Peckham ed. 1959, p. 121). 1 CD... | |
 | Elizabeth Grosz - 2004 - 330 頁
...under which localized or single variations can produce slow and cumulative changes in a population: It may be doubted whether sudden and considerable...deviations of structure such as we occasionally see on our domestic productions, more especially with plants, are ever permanently propagated in a state... | |
 | 1902 - 664 頁
...of permanence in successive generations. " It may be doubted," he wrote, "whether sudden and great deviations of structure, such as we occasionally see...ever permanently propagated in a state of nature." l And with that double doubt whether they ever existed otherwise than in domestic productions, and... | |
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