 | Norfolk and Norwich Naturalists' Society - Natural history - 1884 - 820 pages
...always remember that some check is constantly preventing the too rapid increase of every organised being left in a state of nature. The supply of food,...Every animal in a state of nature regularly breeds j yet in a species long-established, any ynat increase in numbers is obviously impossible, and must... | |
 | Grant Allen - Biography & Autobiography - 1885 - 238 pages
...always remember that some check is constantly preventing the too rapid increase of every organised being left in a state of nature. The supply of food,...animal in a state of nature regularly breeds ; yet in a species long established any great increase in numbers is obviously impossible, and must be checked... | |
 | Joseph Thomas Cunningham - Evolution - 1886 - 48 pages
...time of the publication of the Journal considered the subject of the struggle for existence : — " The supply of food on an average remains constant...run wild during the last few centuries in America." But the greater proportion of his interest and energy was devoted during his voyage to the study of... | |
 | Charles Darwin - Beagle Expedition - 1889 - 628 pages
...the guanaco of the macrauchenia, the existing small Edentata of their numerous gigantic prototypes ? Certainly, no fact in the long history of the world...animal in a state of nature regularly breeds ; yet in a species long established any great increase in numbers is obviously impossible, and must be checked... | |
 | James Bonar - Economic history - 1893 - 432 pages
...175 of ed. 1870), shows how the language and idea of Malthus were even then working in his mind : " Some check is constantly preventing the too rapid...animal to increase by propagation is geometrical." This is seen for example in European animals left to run wild in America during the last few centuries.... | |
 | James Bonar - Economics - 1893 - 438 pages
...175 of ed. 1870), shows how the language and idea of Malthus were even then working in his mind : " Some check is constantly preventing the too rapid...animal to increase by propagation is geometrical." This is seen for example in European animals left to run wild in America during the last few centurie>.... | |
 | James Bonar - Economics - 1893 - 440 pages
...constantly preventing the too rapid increase of every organized 1 By an American economist, Prof. SN Patten. being left in a state of nature. The supply of food...animal to increase by propagation is geometrical." This is seen for example in European animals left to run wild in America during the last few centuries.... | |
 | James Bonar - Economics - 1893 - 440 pages
...constantly preventing the too rapid increase of every organized 1 By an American economist, Prof. SN Patten. being left in a state of nature. The supply of food...an average remains constant ; yet the tendency in ever)- animal to increase by propagation is geometrical." This is seen for example in European animals... | |
 | Henry Neville Hutchinson - Paleontology - 1894 - 346 pages
...preventing the too rapid increase of every organised being left in 1 Naturalist* a Voyage, ch. viii. a state of nature. The supply of food, on an average,...been more astonishingly shown than in the case of European animals run wild during the last few centuries in America. Every animal in a state of nature... | |
 | James Hutchison Stirling - Evolution - 1894 - 392 pages
...always remember that some check is constantly preventing the too rapid increase of every organised being left in a state of nature. The supply of food, on an average, remains constant. We are unable to tell the precise nature of the check. If, then, the too rapid increase of every species,... | |
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We do not steadily bear in mind, how profoundly ignorant we are of the conditions of existence of every animal; nor do we always remember, that some check is constantly preventing the too rapid increase of every organized being left in a state of nature.... 
