 | 1861 - 1148 페이지
...defines comprehensively as laws of Growth with Reproduction, Inheritance, and Variability, with a Ratio of Increase so high as to lead to a Struggle for Life, and as a consequence to Natural Selection. "It is interesting to contemplate an entangled " Edward Everett, at the inauguration of Mr. Webster's... | |
 | 1860 - 694 페이지
...the indirect and direct action of the external condition of life , and frotn use and disuse , a ratio of increase so high as to lead to a struggle for life...natural selection, entailing divergence of character and to the extinction of less-improved forms. Thus from the war of nature, from famine and death, the most... | |
 | Crosthwaite and co - 1860 - 622 페이지
...the indirect and direct action of the external conditions of life, and from use and disuse ; a Ratio of Increase so high as to lead to a Struggle for Life,...entailing Divergence of Character and the Extinction of less improved forms." From this recapitulatory chapter, we shall make but two more sets of extracts,... | |
 | John Phillips - 1860 - 280 페이지
...the indirect and direct action of the external conditions of life, and from use and disuse ; a ratio of increase so high as to lead to a struggle for life,...entailing divergence of character, and the extinction of less improved forms. Thus, from the war of nature, from famine and death, the most exalted object which... | |
 | 1860 - 890 페이지
...Finally, at the conclusion of the argument, the definite view comes out in no ambiguous language : — "Thus, from the war of nature, from famine and death,...object which we are capable of conceiving, namely, thn production of the higher animals, directly follows. There is grandeur in this view of life, with... | |
 | David Page - 1861 - 278 페이지
...the indirect and direct action of the external conditions of life, and from use and disuse ; a ratio of increase so high as to lead to a struggle for life,...entailing divergence of character and the extinction of less improved forms. Thus, from the war of nature, from famine and death, the most exalted object we... | |
 | David Page - 1861 - 276 페이지
...the indirect and direct action of the external conditions of life, and from use and disuse ; a ratio of increase so high as to lead to a struggle for life,...entailing divergence of character and the extinction of less improved forms. Thus, from the war of nature, from famine and death, the most exalted object we... | |
 | 1863 - 584 페이지
...is most sound on this point. That the extirpation of the lower race should be the immediate cause of "the most exalted object which we are capable of conceiving, namely, the production of the. higher animals,"* is a sound biological generalization. The historical event, that the autochthonous Gaulish race has... | |
 | Henry A. DuBois - 1866 - 112 페이지
...operation ; " Growth, with Ke-production ;" " Variability ;" and especially his main law, " a Eatio of Increase so high as to lead to a Struggle for Life,...entailing Divergence of character, and the Extinction of less improved forms." We are ready to admit, that in this state of things, at an early day, some one... | |
 | 1867 - 510 페이지
...indirect and direct action of the external conditions of life and from use and disuse ; and 4th, a ratio of increase so high as to lead to a struggle for life." Now No. 3, you will observe, is in antithesis to Nos. 1 and 2. Variability, and not reproduction or... | |
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Variability from the indirect and direct action of the conditions of life, and from use and disuse; a Ratio of Increase so high as to lead to a Struggle for Life, and as a consequence to Natural Selection, entailing Divergence of Character and the Extinction... 
