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 - 384 páginas |
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Página 3
... and what I believe will be the next conclusion that will be adopted for any length of time by any considerable number of people . In the times of the ancients the preponderance of opinion B 2 STATEMENT OF THE QUESTION AT ISSUE . 3.
... and what I believe will be the next conclusion that will be adopted for any length of time by any considerable number of people . In the times of the ancients the preponderance of opinion B 2 STATEMENT OF THE QUESTION AT ISSUE . 3.
Página 18
... considerable mechanical advantage by altering the line of their direction , and by advancing it farther out of the centre of motion ; and this upon the principles of the resolution of force , upon which all machinery is founded . These ...
... considerable mechanical advantage by altering the line of their direction , and by advancing it farther out of the centre of motion ; and this upon the principles of the resolution of force , upon which all machinery is founded . These ...
Página 21
... considerable angle with the leg . It is manifest , therefore , that flexible strings passing along the interior of the angle , if left to themselves , would , when stretched , start from it . The obvious " ( and it must not be forgotten ...
... considerable angle with the leg . It is manifest , therefore , that flexible strings passing along the interior of the angle , if left to themselves , would , when stretched , start from it . The obvious " ( and it must not be forgotten ...
Página 103
... considerable part of what I have found in the first six volumes of Buffon to bear one way or the other on his views concerning the mutability of species ; and I think the reader , so far from agreeing with M. Isidore Geoffroy that ...
... considerable part of what I have found in the first six volumes of Buffon to bear one way or the other on his views concerning the mutability of species ; and I think the reader , so far from agreeing with M. Isidore Geoffroy that ...
Página 117
... considerable amount of modification in the course of successive generations . I may give the following as an example : - " We do not know whether or no the zebra would breed with the horse or ass - whether the large - tailed Barbary ...
... considerable amount of modification in the course of successive generations . I may give the following as an example : - " We do not know whether or no the zebra would breed with the horse or ass - whether the large - tailed Barbary ...
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Evolution, Old and New: Or the Theories of Buffon, Dr. Erasmus Darwin, and ... Butler Vista completa - 1879 |
Términos y frases comunes
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
Pasajes populares
Página 230 - ... 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!
Página 248 - 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.
Página 364 - 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.
Página 12 - ... 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.
Página 375 - ... 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...
Página iv - 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.
Página 321 - ... 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.
Página 347 - Natural selection acts only by the preservation and accumulation of small inherited modifications, each profitable to the preserved being...
Página 13 - ... 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.