 | 1861 - 716 síður
...individuals of distinct species, or with the physical conditions of life. It is the doctrine of Malthus applied with manifold force to the whole animal and...be no artificial increase of food and no prudential restraints of marriage. — P. 63. We will, just here, in passing, for we have no time to discuss this... | |
 | Charles Dickens - 1860 - 638 síður
...It is Malthus's doctrine applied to the -whole animal and vegetable kingdoms, with increased force ; for, in this case, there can be no artificial increase...increasing more or less rapidly in numbers, all cannot so increase, for the world would not hold them. There is no exception to the rule that every organic... | |
 | James Samuelson, Henry Lawson, William Sweetland Dallas - 1876 - 480 síður
...the doctrine of Malthus applied with manifold force to the whole animal and vegetable kingdoms. .... Although some species may be now increasing more or...cannot do so, for the world would not hold them." natural increase. It will be safest to assume that it begins breeding when thirty years old, and goes... | |
 | E. M. King - 1864 - 432 síður
...stop to over-production, by the destruction of one species by another, as in another page he says, " Although some species may be now increasing, more...all cannot do so, for the world would not hold them. . . . Hence we may confidently assert that all plants and animals are tending to increase in a geometrical... | |
 | Eduard Berens - 1868 - 420 síður
...Und über seine ganze Lehre vom „Kampfe um's Dasein" äussert er: „it is the doctrine of Malthus applied with manifold force to the whole animal and...there can be no artificial increase of food and no pruden tial restraint from marriage" ***). Darnach scheint doch Malthus' Lehre des Untersatzes vollständig... | |
 | Eduard Berens - 1868 - 428 síður
...Und über seine ganze Lehre vom „Kampfe um's Dasein" äussert er: „it is the doctrine of Malthus applied with manifold force to the whole animal and...vegetable kingdoms; for in this case there can be uo artificial increase of food and no prudential restraint from marriage" ***). Darnach scheint doch... | |
 | George St. Clair - 1873 - 280 síður
...is, says Darwin, the doctrine of Malthus applied with manifold force to the whole animal and vegetal kingdoms ; for in this case there can be no artificial...of food, and no prudential restraint from marriage. With plants there is a vast destruction of seeds, but it seems to be the seedlings which suffer most,... | |
 | Wilhelm Roscher - 1878 - 486 síður
...limited only by their mutual struggle for the means of support. That which cannot live there dies. " In this case there can be no artificial increase of...food, and no prudential restraint from marriage." (Darwin, Origin of species, 4 ed. 1866, 73.) Compare B. Franklin, Observations concerning the Increase... | |
 | 1882 - 488 síður
...limited only by their mutual struggle for the means of support. That which cannot live there dies. " In this case there can be no artificial increase of...food, and no prudential restraint from marriage." (Darwin, Origin of species, 4 ed. 1866, 73.) Compare B. Franklin, Observations concerning the Increase... | |
 | Charles Darwin - 1884 - 396 síður
...individuals of distinct species, or with the physical conditions of life. It is the doctrine -of Malthus applied with manifold force to the whole animal and...increasing, more or less rapidly, in numbers, all can not do so, for the world would not hold them. There is no exception to the rule that every organic... | |
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Hence, as more individuals are produced than can possibly survive, there must in every case be a struggle for existence, either one individual with another of the same species, or with the individuals of ^distinct species, or with the physical conditions... 
