| 1860 - 566 lehte
...the Linnsean Society, 1858, p. 55. 1 '.ut , as a general rule, the animal population of a country is stationary, being kept down by a periodical deficiency of food and other checks. Hence the struggle for existence; and the successful result of adapted organisation and powers in a... | |
| 1859 - 578 lehte
...establishing these two points — lut, that the animal population of a country is generally stationary, bcing kept down by a periodical deficiency of food, and...that the comparative abundance or scarcity of the individualt of the several species is entirely due to their organization and resulting habits, which,... | |
| 1860 - 894 lehte
...increase, where congenial food abounds. But, as a general rule, the animal population of a country is stationary, being kept down by a periodical deficiency of food, and other checks. Hence the struggle for existence ¡ and the successful result of adapted organization and powers in... | |
| Alfred Russel Wallace - 1870 - 458 lehte
...is the necessary result. If now we have succeeded in establishing these two points — 1st, that the animal population of a country is generally stationary,...organization and resulting habits, which, rendering it more difficidt to procure a regular supply of food and to provide for their personal safety in some cases... | |
| Alfred Russel Wallace - 1871 - 490 lehte
...is the necessary result. If now we have succeeded in establishing these two points — 1st, that the animal population of a country is generally stationary,...is entirely due to their organization and resulting habiis, which, rendering it more difficult to procure a regular supply of food and to provide for their... | |
| Alfred Russel Wallace - 1891 - 518 lehte
...is the necessary result. If now we have succeeded in establishing these two points — 1st, that the animal population of a country is generally stationary,...periodical deficiency of food, and other checks ; and, 2d, that the comparative abundance or scarcity of the individuals of the several species is entirely... | |
| Alfred Russel Wallace - 1891 - 516 lehte
...generally stationary, being kept down by a periodical deficiency of food, and other checks; and, 2d, that the comparative abundance or scarcity of the...individuals of the several species is entirely due to their organisation and resulting habits, which, rendering it more difficult to procure a regular supply of... | |
| 1902 - 584 lehte
...is the necessary result. If now we have succeeded in establishing these two points — 1st, that the animal population of a country is generally stationary,...periodical deficiency of food, and other checks; and, 2d, that the comparative abundance or scarcity of the individuals of the several species is entirely... | |
| Alfred Russel Wallace - 2002 - 1002 lehte
...is the necessary result. If now we have succeeded in establishing these two points; first, that the animal population of a country is generally stationary,...periodical deficiency of food, and other checks; and, secondly, that the comparative abundance or scarcity of the individuals of the several species is entirely... | |
| George Sarton - 1925 - 658 lehte
...zu varieren? Darauf gibt WALLACE Antwort auf Grund des von ihm formulierten Divergenzprincips : « the comparative abundance or scarcity of the individuals of the several species is entirely doe to their organisation and resulting habils, which, rendering il more difficult to produce a regular... | |
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