Development Theory

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Page 209 - America, and in the geological relations of the present to the past inhabitants of the continent. These facts seemed to throw some light on the origin of species, — that mystery of mysteries, as it has been called by one of our greatest philosophers. On my return home it occurred to me (in 1837) that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it. After five years I allowed myself to...
Page 6 - As from his lair the wild beast where he wons In" forest wild, in thicket, brake, or den...
Page 52 - ... and during some season or occasional year, otherwise, on the principle of geometrical increase, its numbers would quickly become so inordinately great that no country could support the product.
Page 27 - On the evidence of palaeontology, the evolution of many existing forms of animal life from their predecessors is no longer an hypothesis, but an historical fact ; it is only the nature of the physiological factors to which that evolution is due which is still open to discussion.
Page 6 - The tawny lion, pawing to get free His hinder parts, then springs as broke from bonds, And rampant shakes his brinded mane...
Page 171 - ... Not being able to appreciate, or conceive, of the distinction between the psychical phenomena of a chimpanzee and of a Boschisman, or of an Aztec with arrested brain-growth, as being of a nature so essential as to preclude a comparison between them, or as being other than a difference of degree, I cannot shut my eyes to the significance of that all-pervading similitude of structure — every tooth, every bone, strictly homologous — which makes the determination of the difference between Homo...

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