 | 1889 - 434 páginas
...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 standing room for his progeny." Again he says : "Lighten any check, mitigate the destruction ever so little, and the number of the... | |
 | 1860 - 966 páginas
...matters of opinion, and admit of contest ; but what can we think "f the following statement at p. 64 ? "Even slow-breeding man has doubled in twenty-five years, and at this rate, in a few thousand years, there would literally not be standing-room for bis progeny." True, were the fact... | |
 | John Holmes Agnew, Walter Hilliard Bidwell, Henry T. Steele - 1860 - 612 páginas
...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 be stain!. ugroorn for his progeny. Linnaius has calculated... | |
 | 1860 - 982 páginas
...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 be standing room for his progeny. Linnseus has calculated that if an annual plant produced only two seeds — and there is no plant so... | |
 | Illinois Natural History Society - 1861 - 224 páginas
...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 be standing room for his progeny. * * * In looking at Nature, it is most necessary to k< ep the fon going considerations always in mind — never... | |
 | 1861 - 562 páginas
...high a 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 at this rate in a few thousand years there would literally not be standing room for his progeny. Linneus has calculated... | |
 | 1861 - 824 páginas
...high a rate, that 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 rate, in a few thousand years, there would literally uoe be standing room for his progeny. Linn&us has calculated... | |
 | Illinois State Agricultural Society - 1861 - 736 páginas
...a single pair. Even slowbreeding man lias doubled in twenty-five years ; and ut this rate, iu a few thousand years there would literally not be standing room for his progeny. * * * In looking at Xature, it i-< most necessary to keep the foregoing considerations always in mind — never... | |
 | Charles Darwin - 1861 - 470 páginas
...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 be standing room for his progeny. Linnaeus has calculated that if an annual plant produced only two seeds — and there is no plant so... | |
 | James Samuelson, Henry Lawson, William Sweetland Dallas - 1876 - 508 páginas
...high a rate that if not destroyed the earth would soon be covered with the progeny of a single pair. Even slow-breeding man has doubled in twenty-five...than a thousand years there would literally not be standing-room for his progeny. . . . The elephant is reckoned the slowest breeder of all known animals,... | |
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There is no exception to the rule that every organic being naturally increases at so high a rate, that, 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... 
