Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Сторінка 54
... increase of every organised being left in a state of nature . The supply of food on an average remains constant ; yet the tendency in every animal to increase by propagation is geo- metrical ; and its surprising effects have nowhere ...
... increase of every organised being left in a state of nature . The supply of food on an average remains constant ; yet the tendency in every animal to increase by propagation is geo- metrical ; and its surprising effects have nowhere ...
Сторінка 55
... increase in geometrical ratio , his means of subsistence increases in arithmetical ratio only ; a statement difficult to prove , and different from that of Darwin . It is quite possible that the reading of Malthus's book may have blown ...
... increase in geometrical ratio , his means of subsistence increases in arithmetical ratio only ; a statement difficult to prove , and different from that of Darwin . It is quite possible that the reading of Malthus's book may have blown ...
Сторінка 57
... increase in density of the planets the nearer they are to the sun , and the uniformity of chemical composition , distinctly imply a common origin . We also know that the sun is radiat- ing away large quantities of heat each year ; and ...
... increase in density of the planets the nearer they are to the sun , and the uniformity of chemical composition , distinctly imply a common origin . We also know that the sun is radiat- ing away large quantities of heat each year ; and ...
Сторінка 58
... increased up to the present day . Raised from the bed of the ocean by the movements of the heated interior of the earth , they now form the greater part of the continents , while at the same time the oceans have probably increased in ...
... increased up to the present day . Raised from the bed of the ocean by the movements of the heated interior of the earth , they now form the greater part of the continents , while at the same time the oceans have probably increased in ...
Сторінка 73
... increase , are in- admissible , in what way can we conceive any material particles to exist ? And yet , without some special material body to work upon , how can we conceive any force reproducing latent characters at all ? Here , then ...
... increase , are in- admissible , in what way can we conceive any material particles to exist ? And yet , without some special material body to work upon , how can we conceive any force reproducing latent characters at all ? Here , then ...
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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