Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Сторінка 6
... varieties . If the varieties came quickly , natural selection would act quickly ; and vice versa . No doubt , if the physicists are right , variation must have gone on quicker than it does now ; but Professor Poulton has shown that the ...
... varieties . If the varieties came quickly , natural selection would act quickly ; and vice versa . No doubt , if the physicists are right , variation must have gone on quicker than it does now ; but Professor Poulton has shown that the ...
Сторінка 32
... varieties of a species led a few naturalists - among them was Erasmus Darwin , grandfather of Charles Darwin - to doubt the doc- trine of fixity of species ; but it was not until La- 66 marck published his Philosophie Zoologique , at ...
... varieties of a species led a few naturalists - among them was Erasmus Darwin , grandfather of Charles Darwin - to doubt the doc- trine of fixity of species ; but it was not until La- 66 marck published his Philosophie Zoologique , at ...
Сторінка 37
... Varieties of a species show exactly the same thing . Now these varieties , he says , are acknowledged to be due to climate , habits , manner of living , Darwinism 37.
... Varieties of a species show exactly the same thing . Now these varieties , he says , are acknowledged to be due to climate , habits , manner of living , Darwinism 37.
Сторінка 38
... varieties . Why , he asks , should not these varieties go on changing until they be- come new species ? He then refers to the great changes that have taken place in our cultivated plants and domesticated animals ; and points out how ...
... varieties . Why , he asks , should not these varieties go on changing until they be- come new species ? He then refers to the great changes that have taken place in our cultivated plants and domesticated animals ; and points out how ...
Сторінка 47
... varieties are due to climate ; which is not a legitimate induc- tion from anything we know , as I shall show later on . He then argues that , as changes in physical geography take place slowly , therefore climate , and with it the ...
... varieties are due to climate ; which is not a legitimate induc- tion from anything we know , as I shall show later on . He then argues that , as changes in physical geography take place slowly , therefore climate , and with it the ...
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Darwinism and Lamarckism, Old and New: Four Lectures Frederick Wollaston Hutton Повний перегляд - 1899 |
Darwinism and Lamarckism, Old and New: Four Lectures Frederick Wollaston Hutton Повний перегляд - 1899 |
Darwinism and Lamarckism Old and New Frederick Wollaston Hutton Попередній перегляд недоступний - 2014 |
Загальні терміни та фрази
acquired characters action of external action of natural action of selection adapted animals and plants arise artificial selection become biology birds called cause cells Chatham Island colour congenital consequently Darwin definite variation despotism different species direct action divergent evolution domesticated doubt earth environment evidence explain external conditions extrinsic selection facts fancy pigeons favour fertile flatfish flowers gemmules genera genus germ-cells groups Herbert Spencer hypothesis idea important indefinite infertility inheritance insects island kinetogenesis Lamarck Lamarckians large number lecture living means mental variations modification Moritz Wagner natural selection naturalists Neo-Lamarckians North Island notochord number of individuals offspring opinion organic evolution organisation Origin of Species Pangenesis physical isolation physiological isolation plants and animals post-natal present principle of selection produced Professor progress Radiolarians reason recognition-marks says science of history structure struggle for existence suppose take place theory tion transmitted use-inheritance varieties vary vertebræ Zealand