| 1889 - 434 pagini
...16,778,000 more than it was nineteen months ago. In his " Origin of Species " Darwin declares that "there is no exception to the rule that every organic...if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slow-breeding man doubles in twentyfive years, and at this rate... | |
| 1860 - 982 pagini
...though food may bo now superabundant, it is not so at all seasons of each recurring year." — p. C2. "There is no exception to the rule that every organic...if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slow-breeding man has doubled in twenty-rive years, and at this... | |
| Charles Darwin - 1861 - 470 pagini
...marriage. Although some species may be now increasing, more or less rapidly, in numbers, all cannot do so, for the world would not hold them. There is...if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slow-breeding man has doubled in twenty-live years, and at this... | |
| 1861 - 520 pagini
...which regulate the increase of animals and plants, can be abundantly illustrated by a few facts. " There is no exception " to the rule, that every organic...if not destroyed, the earth would " soon be covered by the progeny of a " single pair. Even races of slow-breed" ing men have been doubled hi twenty" five... | |
| 1861 - 824 pagini
...same species, or with the individuals of distinct species, or with the physical conditions of life " There is no exception to the rule that every organic...if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years, and at this... | |
| 1861 - 788 pagini
...which regulate the increase of animals and plants, can be abundantly illustrated by a few facts. " There is no exception " to the rule, that every organic...if not destroyed, the earth would " soon be covered by the progeny of a " single' pair. Even races of slow-breed" ing men have been doubled in twenty"... | |
| 1861 - 562 pagini
...brought into existence. In illustration of this Mr. Darwin says, at page 67 (third edition) : — " There is no exception to the rule that every organic...rate that, if not destroyed, the earth would soon be peopled by the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years, and... | |
| Illinois Natural History Society - 1861 - 224 pagini
...so inordinately great that no country could support the product. * * * There is no exception to tlie rule that every organic being naturally increases...if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slowbreeding man has doubled in twenty-five yea s; and at this... | |
| Illinois State Agricultural Society - 1861 - 736 pagini
...inordinately great that no country could support the product. * * * There is no exception to the rnle that every organic being naturally increases at so...if not destroyed, the earth would soon be covered by the progeny of a single pair. Even slowbreeding man lias doubled in twenty-five years ; and ut this... | |
| 1862 - 838 pagini
...of animals live forever, not excepting man, the earth would soon be incapable of containing any of them. "There is no exception to the rule that every...if not destroyed, the earth would soon be covered by the offspring of a single pair. Linnaeus has calculated that if an animal plant produced only two... | |
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