 | 1861 - Страниц: 1148
...he 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... | |
 | Crosthwaite and co - 1860 - Страниц: 622
...reproduction; Variability from the indirect and direct action of the external conditions of life, and from use and disuse ; a Ratio of Increase so high as to...Natural Selection, entailing Divergence of Character and the Extinction of less improved forms." From this recapitulatory chapter, we shall make but two more... | |
 | John Phillips - 1860 - Страниц: 262
...reproduction; variability from the indirect and direct action of the external conditions of life, and from use and disuse; a ratio of increase so high as to...selection, entailing divergence of character, and the extinction of less improved forms. Thus, from the war of nature, from famine and death, the most... | |
 | Charles Darwin - 1861 - Страниц: 470
...reproduction ; Variability from the indirect and direct action of the external conditions of life, and from use and disuse ; a Ratio of Increase so high as to...Natural Selection, entailing Divergence of Character and the Extinction of less-improved forms. Thus, from the war of nature, from famine and death, the most... | |
 | David Page - 1861 - Страниц: 278
...reproduction ; variability from the indirect and direct action of the external conditions of life, and from use and disuse ; a ratio of increase so high as to...natural selection, entailing divergence of character and the extinction of less improved forms. Thus, from the war of nature, from famine and death, the most... | |
 | David Page - 1861 - Страниц: 276
...reproduction ; variability from the indirect and direct action of the external conditions of life, and from use and disuse ; a ratio of increase so high as to...natural selection, entailing divergence of character and the extinction of less improved forms. Thus, from the war of nature, from famine and death, the most... | |
 | Charles Darwin - 1864 - Страниц: 472
...reproduction ; Variability from the indirect and direct action of the external conditions of life, and from use and disuse ; a Ratio of Increase so high as to...Natural Selection, entailing Divergence of Character and the Extinction of less-improved forms. Thus, from the war of nature, from famine and death, the most... | |
 | Henry A. DuBois - 1866 - Страниц: 112
...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,...Selection, entailing Divergence of character, and the Extinction of less improved forms." We are ready to admit, that in this state of things, at an... | |
 | 1867 - Страниц: 510
...the 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... | |
 | 1866 - Страниц: 694
...vigorous operation ; " Growth, with Re-production ;" " Variability ;" and especially his main law, "a Ratio of Increase so high as to lead to a Struggle...Selection, entailing Divergence of character, and the Extinction of less improved forms." We are ready to admit, that in this state of things, at an... | |
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These laws, taken in the largest sense, being growth with reproduction; inheritance which is almost implied by reproduction; variability from the indirect and direct action of the conditions of life, and from use and disuse; a ratio of increase so high... 
