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Books Books 1 - 10 of 69 on The elephant is reckoned the slowest breeder of all known animals, and I have taken....
" The elephant is reckoned the slowest breeder of all known animals, and I have taken some pains to estimate its probable minimum rate of natural increase; it will be safest to assume that it begins breeding when thirty years old, and goes on breeding till... "
Animal Studies: A Text-book of Elementary Zoology for Use in High Schools ... - Page 283
by David Starr Jordan, Vernon Lyman Kellogg, Harold Heath - 1903 - 459 pages
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Macmillan's Magazine

David Masson - 1861
...its probable minimum rate of " natural increase. It will be under the "mark to assume that it breeds when " thirty years old, and goes on breeding ' until ninety years old, bringing forth ' three pairs of young in this interval. ' If this be so, at the end of the fifth ' century there would...
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Macmillan's Magazine, Volume 3

David Masson, Sir George Grove, John Morley, Mowbray Morris - 1861
...its probable minimum rate of " natural increase. It will be under the "mark to assume that it breeds when " thirty years old, and goes on breeding " until ninety years old, bringing forth " three pairs of young in this interval. " If this be so, at the end of the fifth " century there would...
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The Popular Science Review: A Quarterly Miscellany of ..., Volume 15

James Samuelson, Henry Lawson, William Sweetland Dallas - Science - 1876
...It will be safest to assume that it begins breeding when thirty years old, and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till 100 years old. If this be so, after a period of from 740 to 750 years, there would be nearly nineteen...
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On the Origin of Species by Means of Natural Selection, Or The Preservation ...

Charles Darwin - Evolution - 1875 - 458 pages
...it will be safest to assume that it begins breeding when thirty years old, and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till one hundred years old ; if this be so, after a period of from 740 to 750 years there would be nearly...
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The Wages Question: A Treatise on Wages and the Wages Class

Francis Amasa Walker - Social history - 1876 - 428 pages
...It will be safest to assume that it begins breeding when thirty years old, and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till one hundred years old ; if this be so, after a period of from seven hundred and forty to seven hundred...
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THE WAGES QUESTION A TREATSIE ON WAGES AND THE WAGES CLASS

FRANCIS A WALKER, M.A., Ph.D. - 1876
...It will be safest to assume that it begins breeding when thirty years old, and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till one hundred years old ; if this be so, after a period of from seven hundred and forty to seven hundred...
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Darwinism Stated by Darwin Himself: Characteristic Passages from the ...

Charles Darwin - Evolution - 1884 - 351 pages
...it will be safest to assume that it begins breeding when thirty years old, and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till one hundred years old ; if this be so, after a period of from seven hundred and forty to seven hundred...
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The Development Theory: A Brief Statement for General Readers

Joseph Young Bergen, Fanny Dickerson Bergen - Evolution - 1884 - 240 pages
...It will be safest to assume that it begins breeding when thirty years old, and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till one hundred years old : if this be so, after a period of from seven hundred forty to seven hundred...
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American Church Review, Volumes 34-35

1881
...it will be safest to assume that it begins breeding when thirty years old, and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till one hundred years old ; if this be so, after a period of from 740 to 750 years, there would be nearly...
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The American Library of Art, Literature and Song, Volume 5

Literature - 1886
...It will be safest to assume that it begins breeding when thirty years old and goes on breeding till ninety years old, bringing forth six young in the interval, and surviving till one hundred years old ; if this be so, after a period of from seven hundred and for,ty to seven hundred...
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