Darwin and After Darwin: The Darwinian theory. 1892

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Open court publishing Company, 1892 - Evolution
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Page 223 - stamp of the American continent. There are twenty-six land birds ; of these, twenty-one, or perhaps twenty-three, are ranked as distinct species, and would commonly be assumed to have been here created ; yet the close affinity of most of these birds to American species is manifest in every character, in their habits, gestures, and tones of voice.
Page 423 - would often long remain confined to some one region ; but that, when this adaptation had once been effected, and a few species had thus acquired a great advantage over other organisms, a comparatively short time would be necessary to produce many divergent forms, which would spread rapidly and widely throughout the world.
Page 423 - and, in the succeeding formation, such groups of species will appear as if suddenly created. I may here recall a remark formerly made, namely, that it might require a long succession of ages, to adapt an organism to some new and peculiar line of life, for instance, to fly through the air ; and consequently that the transitional
Page 77 - when about an inch in length, " The great toe is shorter than the others ; and, instead of being parallel to them, is projected at an angle from the side of the foot, thus corresponding with the permanent condition of this part in the Quadrumana 1
Page 428 - The total absence of any trace of fossils has inclined many geologists to attribute the origin of the most ancient strata to an azoic period, or one antecedent to the existence of organic beings. Admitting, they say, the obliteration, in some cases, of fossils by plutonic action, we might still expect that traces of them would
Page 416 - we probably take a quite erroneous view when we assume that sediment is being deposited over nearly the whole bed of the sea, at a rate sufficiently quick to embed and preserve fossil remains. Throughout an enormously large proportion of the ocean, the bright blue tint of the
Page 254 - Not only is the doctrine of the transmutation of species in itself disproved by the best physiological reasonings, but the additional assumptions which are requisite to enable its advocates to apply it to the explanation of the geological and other phenomena of the earth, are altogether gratuitous and fantastical
Page 434 - If we compare the present Alpine plants and animals of the several great European mountain-ranges one with another, though many of the species remain identically the same, some exist as varieties, some as doubtful forms or sub-species, and some as distinct yet closely allied species representing each other on
Page 416 - their preservation, far better than pages of detail. Nor is their rarity surprising, when we remember how large a proportion of the bones of tertiary mammals have been discovered either in caves or in lacustrine deposits; and that not a cave or true lacustrine bed is known belonging to the age of our secondary or palaeozoic formations.
Page 84 - baboons and some species of macacus, the upper portion of the ear is slightly pointed, and the margin is not at all folded inwards ; but if the margin were to be thus folded, a slight point would necessarily project towards the centre