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" If it could be proved that any part of the structure of any one species had been formed for the exclusive good of another species, it would annihilate my theory, for such could not have been produced through natural selection. "
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... - Página 223
por Charles Darwin - 1889
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The Microcosm: The Organ of Substantial Philosophy, Volumen8

1891
...organ could be found which natural selection could not have developed, but he frankly declares : " If It could be proved that any part of the structure of any species had been formed for the exclusive good of another species it would annihilate my theory, for...
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Nature, Volumen41

Sir Norman Lockyer - 1890
...was said by Darwin (" Origin of Species," chap. vi. ) : " If it could lie proved lhat any part of ihe structure of any one species had been formed for the...annihilate my theory, for such could not have been produced ihrough nalural selection," he evidently meant only species living without organic connection wilh...
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Contemporary English Ethics

Daniel Rees - 1892 - 72 páginas
...without some corresponding advantage to itself would handicap the competitor in the struggle for life. "If it could be proved that any part of the structure...not have been produced through natural selection. Natural selection tends only to make each organic being as perfect as, or slightly more perfect than,...
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Essays and Criticisms, Volumen2

St. George Jackson Mivart - 1892
...descendants of this form—either directly, or indirectly, through the complex laws of growth;' and ' if it could be proved that any part of the structure...annihilate my theory, for such could not have been produced by natural selection.' 1 Mr. Darwin, as I before 2 observed, could hardly have employed words by which...
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Nature, Volumen45

1892
...statement made by Darwin was, that if any part of the structure of one species could be proved to have been formed for the exclusive good of another species it would annihilate his theory ("Origin," 6th edition, p. 162). Mr. Syme omits the essential word " exclusively," and thus...
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Alternating Generations: A Biological Study of Oak Galls and Gall Flies

Hermann Adler - 1894 - 198 páginas
...that the tree does not form them in a disinterested manner for the sake of the Cynips. Darwin says : ' If it could be proved that any part of the structure...could not have been produced through natural selection V So far as galls are concerned, Darwin's theory is perfectly safe. The 'excitatory emanations,' as...
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The Origin of Species by Means of Natural Selection, Or, The ..., Volumen1

Charles Darwin - 1896
...serves merely as a guide to birds and beasts, in order that the fruit may be devoured and the matured seeds disseminated : I infer that this is the case...annihilate my theory, for such could not have been pioduced through natural selection. Although many statements may be found in works on natural history...
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Charles Darwin's Works: The origin of species by means of natural selection ...

Charles Darwin - 1896
...serves merely as a guide to birds and beasts, in order that the fruit may be devoured and the matured seeds disseminated : I infer that this is the case...annihilate my theory, for such could not have been pioduced through natural selection. Although many statements may be found in works on natural history...
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The Method of Darwin: A Study in Scientific Method

Frank Cramer - 1896 - 232 páginas
...by observation, that he boldly staked the fate of his whole theory on the truth of the inference. " If it could be proved that any part of the structure...such could not have been produced through natural selection."1 He could never know from direct observation that there were no such cases in existence,...
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The Agricultural Gazette of New South Wales, Volumen7

New South Wales. Department of Agriculture - 1897
...for the sake of the inhabitants," and again, the remark of Darwin, in his " Origin of Species " : " If it could be proved that any part of the structure of any one species — say a tree — had been formed for the exclusive good of another species — say an insect —...
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