Evolution, Old and New: Or, the Theories of Buffon, Dr. Erasmus Darwin, and Lamarck, as Compared with that of Mr. Charles DarwinHardwicke and Bogue, 1879 - 384페이지 |
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xi 페이지
... NATURAL SELECTION CONSIDERED AS A MEANS OF MODIFICATION -THE CONFUSION WHICH THIS EXPRESSION OCCASIONS 315 335 345 CHAPTER XXI . MR . DARWIN'S DEFENCE OF THE EXPRESSION CONTENTS . xi.
... NATURAL SELECTION CONSIDERED AS A MEANS OF MODIFICATION -THE CONFUSION WHICH THIS EXPRESSION OCCASIONS 315 335 345 CHAPTER XXI . MR . DARWIN'S DEFENCE OF THE EXPRESSION CONTENTS . xi.
xii 페이지
... NATURAL SELEC- TION PROFESSOR MIVART AND NATURAL SELECTION - CHAPTER XXII . PAGE 362 THE CASE OF THE MADEIRA BEETLES AS ILLUSTRATING DIFFERENCE BETWEEN THE EVOLUTION OF LAMARCK AND OF MR . CHARLES DARWIN - CONCLUSION THE 373 EVOLUTION ...
... NATURAL SELEC- TION PROFESSOR MIVART AND NATURAL SELECTION - CHAPTER XXII . PAGE 362 THE CASE OF THE MADEIRA BEETLES AS ILLUSTRATING DIFFERENCE BETWEEN THE EVOLUTION OF LAMARCK AND OF MR . CHARLES DARWIN - CONCLUSION THE 373 EVOLUTION ...
7 페이지
... Natural Selection " theory , is that the variations shall have been mainly accidental and without design of any sort , but that the adaptations of structure to need shall have come about by the accu- mulation , through natural selection ...
... Natural Selection " theory , is that the variations shall have been mainly accidental and without design of any sort , but that the adaptations of structure to need shall have come about by the accu- mulation , through natural selection ...
8 페이지
... naturally infer that the eye has been formed by a somewhat analogous process . But may not this inference be ... natural selection will pick out with unerring skill each improvement . Let this process go on for millions of years ...
... naturally infer that the eye has been formed by a somewhat analogous process . But may not this inference be ... natural selection will pick out with unerring skill each improvement . Let this process go on for millions of years ...
9 페이지
... natural selection . Natural selection , however , is as he himself tells us , a synonym for the survival of the fittest , which last he declares to be the " more accurate " expression , and to be " sometimes " equally convenient . It is ...
... natural selection . Natural selection , however , is as he himself tells us , a synonym for the survival of the fittest , which last he declares to be the " more accurate " expression , and to be " sometimes " equally convenient . It is ...
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action admit animals animals and plants appear become beetles birds body brain breeds Buffon called cause changes chapter Charles Darwin climate common consequence continues creature descent with modification disuse doctrine domestication effect Erasmus Darwin evolution existence eyes fact feel fittest G. H. Lewes Geoffroy St gradually habits hence Hilaire Hist horse Ibid idea individual insects insisted instinct Isidore Geoffroy kind Lamarck less living filament manner matter means of modification mind mutability of species natural selection Natural Theology naturalists nerves observe offspring opinion organ Origin of Species parents passage perception perfect Phil Philosophie Zoologique present produced Professor Haeckel purpose quadrupeds race reader reason resemblance rudimentary sensation sense structure suppose survival teleology theory of descent things tion variations varieties vary vegetable Vestiges of Creation volume wild wings words writes Zool Zoonomia
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230 페이지 - ... would it be too bold to imagine, that all warm-blooded animals have arisen from one living filament, which THE GREAT FIRST CAUSE endued with animality, with the power of acquiring new parts, attended with new propensities, directed by irritations, sensations, volitions, and associations; and thus possessing the faculty of continuing to improve by its own inherent activity-, and of delivering down those improvements by generation to its posterity, world without end!
248 페이지 - The work, from its powerful and brilliant style, though displaying in the earlier editions little accurate knowledge and a great want of scientific caution, immediately had a very wide circulation. In my opinion it has done excellent service in this country in calling attention to the subject, in removing prejudice, and in thus preparing the ground for the reception of analogous views.
364 페이지 - In the literal sense of the word, no doubt, Natural Selection is a false term; but who ever objected to chemists speaking of the elective affinities of the various elements ? — and yet an acid cannot strictly be said to elect the base with which it in preference combines.
12 페이지 - ... the absurdity of this answer. But suppose I had found a watch upon the ground, and it should be inquired how the watch happened to be in that place, I should hardly think of the answer which I had before given, that for any thing I knew the watch might have always been there.
375 페이지 - ... the wingless condition of so many Madeira beetles is mainly due to the action of natural selection, combined probably with disuse. For during many successive generations each individual beetle which flew least, either from its wings having been ever so little less perfectly developed or from indolent habit, will have had the best chance of surviving from not being blown out to sea...
iv 페이지 - THE FAIR HAVEN. A Work in Defence of the Miraculous Element in our Lord's Ministry. Cr. 8vo. , 7*. 6d. LIFE AND HABIT. An Essay after a Completer View of Evolution. Cr. 8vo., 7s. 6d EVOLUTION, OLD AND NEW.
321 페이지 - ... of climate, whose figure is best accommodated to health, strength, defence, and support; whose capacities and instincts can best regulate the physical energies to self-advantage according to circumstances — in such immense waste of primary and youthful life, those only come forward to maturity from the strict ordeal by which Nature tests their adaptation to her standard of perfection and fitness to continue their kind by reproduction.
347 페이지 - Natural selection acts only by the preservation and accumulation of small inherited modifications, each profitable to the preserved being...
13 페이지 - ... different size from what they are, or placed after any other manner, or in any other order, than that in which they are placed, either no motion at all would have been carried on in the machine, or none which would have answered the use that is now served by it. To reckon up a few of the plainest of these parts, and of their offices, all tending to one result : — We see a cylindrical box containing a coiled elastic spring, which, by its endeavour to relax itself, turns round the box.