Darwiniana: Essays |
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... of which the present work of Mr. Darwin is but the preliminary outline, may be
stated in his own language as follows:– “Species originated by means of natural
selection, or through the preservation of the favoured races in the struggle for life.
... of which the present work of Mr. Darwin is but the preliminary outline, may be
stated in his own language as follows:– “Species originated by means of natural
selection, or through the preservation of the favoured races in the struggle for life.
16 페이지
On careful inquiry it is found that all these, and the many other artificial breeds or
races of animals and plants, have been produced by one method. The breeder—
and a skilful one must be a person of much sagacity and natural or acquired ...
On careful inquiry it is found that all these, and the many other artificial breeds or
races of animals and plants, have been produced by one method. The breeder—
and a skilful one must be a person of much sagacity and natural or acquired ...
17 페이지
It is then found that by continuing the process of selection—always breeding, that
is, from wellmarked forms, and allowing no impure crosses to interfere—a race
may be formed, the tendency of which to reproduce itself is exceedingly strong; ...
It is then found that by continuing the process of selection—always breeding, that
is, from wellmarked forms, and allowing no impure crosses to interfere—a race
may be formed, the tendency of which to reproduce itself is exceedingly strong; ...
39 페이지
Here, then, is a remarkable and well-established instance, not only of a very
distinct race being established per saltum, but of that race breeding “true” at once
, and showing no mixed forms, even when crossed with another breed. By taking
...
Here, then, is a remarkable and well-established instance, not only of a very
distinct race being established per saltum, but of that race breeding “true” at once
, and showing no mixed forms, even when crossed with another breed. By taking
...
40 페이지
Gratio Kelleia was not the progenitor of a race of six-fingered men, as Seth
Wright's ram became a nation of Ancon sheep, though the tendency of the variety
to perpetuate itself appears to have been fully as strong in the one case as in the
...
Gratio Kelleia was not the progenitor of a race of six-fingered men, as Seth
Wright's ram became a nation of Ancon sheep, though the tendency of the variety
to perpetuate itself appears to have been fully as strong in the one case as in the
...
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able action adapted admit animals appears authority become believe better body breed called causes changes character common complete consider course creation cross Darwin deposited direct distinct doctrine doubt effect evidence evolution existence experiments expression fact favour force forms further germ give given groups hand horse hypothesis important influence kind knowledge known laws less living matter means mind modification natural natural selection objections observation once operation opinion organic Origin of Species parent particular persons phenomena plants position possible present principles probably produced Professor prove question races reason record relations remains remarkable respect result scientific selective breeding sense similar sort structure suppose term theory thing thought tion true variation varieties vary views whole writer
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| 제목 | Darwiniana: Essays 2권/Collected essays by T.H. Huxley 2권/Collected essays 2권/Essays, Thomas Henry Huxley |
| 저자 | Thomas Henry Huxley |
| 발행인 | Appleton, 1894 |
| 길이 | 475페이지 |
| 서지정보 내보내기 | BiBTeX EndNote RefMan |