Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Сторінка 1
... But he always admitted that he had failed to penetrate the mystery behind them ; 1 Animals and Plants under Domestication , 2d ed . , vol . ii . , p . 272 . and as he published his speculations on these subjects in I INTRODUCTION.
... But he always admitted that he had failed to penetrate the mystery behind them ; 1 Animals and Plants under Domestication , 2d ed . , vol . ii . , p . 272 . and as he published his speculations on these subjects in I INTRODUCTION.
Сторінка 38
... domesticated animals ; and points out how impossible it is to say now from what species some of them have been derived . We cannot find in nature our cabbages and lettuces : the domestic duck has even lost its power of flight . Changes ...
... domesticated animals ; and points out how impossible it is to say now from what species some of them have been derived . We cannot find in nature our cabbages and lettuces : the domestic duck has even lost its power of flight . Changes ...
Сторінка 75
... domestication does not induce variation at all , as in the goose or in the rye , both of which hardly vary , notwithstanding that they have been domesticated for ages . Again , the variations induced by excess of food are not always ...
... domestication does not induce variation at all , as in the goose or in the rye , both of which hardly vary , notwithstanding that they have been domesticated for ages . Again , the variations induced by excess of food are not always ...
Сторінка 77
... domesticated ani- mals , we find that variability is by no means closely related to the amount of change in con- ditions . The most variable of domesticated birds in Europe are the pigeon , the fowl , and the duck ; and of these the ...
... domesticated ani- mals , we find that variability is by no means closely related to the amount of change in con- ditions . The most variable of domesticated birds in Europe are the pigeon , the fowl , and the duck ; and of these the ...
Сторінка 87
... domesticated animals and plants appears to be indefinite ; but it does not necessarily follow that it is so in a state of nature . We have a good example of this in the dimensions of the leg - bones of the moas which were found at Kapua ...
... domesticated animals and plants appears to be indefinite ; but it does not necessarily follow that it is so in a state of nature . We have a good example of this in the dimensions of the leg - bones of the moas which were found at Kapua ...
Інші видання - Показати все
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 selection adapted Ampelopsis animals and plants arise artificial selection become biology birds brought called cause cells colour compensation of growth congenital consequently Darwin definite variation despotism direct action divergent evolution doubt elongated environment evidence existence explain external conditions extrinsic selection facts favour flatfish flowers G. H. Lewes gemmules genera genus germ-cells groups Henslow Herbert Spencer hypothesis idea important indefinite infertility inherited insects island kinetogenesis Lamarck Lamarckians large number living means mental variations modification Moritz Wagner movements nation natural selection naturalists Neo-Lamarckians notochord number of individuals offspring opinion organic evolution organisation Origin of Species Pangenesis physical Physiogenesis plants and animals principle of compensation principle of selection produced Professor progress Radiolarians reason result says science of history seems sterility structure suppose take place theory tion transmission transmitted tribe use-inheritance varieties vertebræ Weismann Zealand