 | 1889 - 434 Seiten
...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...the progeny of a single pair. Even slow-breeding man doubles in twentyfive years, and at this rate in a few thousand years, there would literally not be... | |
 | 1860 - 982 Seiten
...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...progeny of a single pair. Even slow-breeding man has doubled in twenty-rive years, and at this rate, in a few thousand years, there would literally not... | |
 | John Holmes Agnew, Walter Hilliard Bidwell, Henry T. Steele - 1860 - 612 Seiten
...rule,.tbat every organic being naturally increases at во high a rate that, if not deutroyed. thc 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 rate, in a few thousand years, there would literally not... | |
 | Charles Darwin - 1861 - 470 Seiten
...close together on the same branch, may more truly be said to struggle with each other. As the misseltoe is disseminated by birds, its existence depends on...progeny of a single pair. Even slow-breeding man has doubled in twenty-live years, and at this rate, in a few thousand years, there would literally not... | |
 | 1861 - 824 Seiten
...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...progeny of a single pair. Even slow-breeding man has doubled in twenty-five years, and at this rate, in a few thousand years, there would literally uoe... | |
 | 1861 - 520 Seiten
...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...be covered by the progeny of a " single pair. Even races of slow-breed" ing men have been doubled hi twenty" five years ; and at this rate, in a few "... | |
 | 1861 - 788 Seiten
...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...be covered by the progeny of a " single' pair. Even races of slow-breed" ing men have been doubled in twenty" five years ; and at this rate, in a few "... | |
 | Illinois Natural History Society - 1861 - 224 Seiten
...so inordinately great that no country could support the product. * * * There is no exception to tlie rule that every organic being naturally increases...progeny of a single pair. Even slowbreeding man has doubled in twenty-five yea s; and at this rate, in a ft w thousand years, there would literally not... | |
 | Illinois State Agricultural Society - 1861 - 736 Seiten
...inordinately great that no country could support the product. * * * There is no exception to the rnle that every organic being naturally increases at so...the progeny of a single pair. Even slowbreeding man lias doubled in twenty-five years ; and ut this rate, iu a few thousand years there would literally... | |
 | 1861 - 562 Seiten
...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... | |
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It is the doctrine of Malthus applied with manifold force to the whole animal and vegetable kingdoms; for in this case there can be no artificial increase of food, and no prudential restraint from marriage. Although some species may be now increasing,... 
