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 36
... brain upon the brain . He had his theory that an animal could not feel unless it had a nervous system , and at least a spinal marrow - and that it could not think at all without a brain - all his facts , therefore , have to be made to ...
... brain upon the brain . He had his theory that an animal could not feel unless it had a nervous system , and at least a spinal marrow - and that it could not think at all without a brain - all his facts , therefore , have to be made to ...
Página 129
... brain which has been called the seat of ' sensations ' is yet not the centre of ' perception , ' since we can wound it , and even take considerable parts of it away , without death's ensuing , and without preventing an animal from ...
... brain which has been called the seat of ' sensations ' is yet not the centre of ' perception , ' since we can wound it , and even take considerable parts of it away , without death's ensuing , and without preventing an animal from ...
Página 130
... the body , and about the region of the diaphragm . The brain , on the contrary , shows no sign of being a seat * Tom . vii . p . 12 , 1758 . of perception . In the head there are pure sensations 130 EVOLUTION , OLD and new .
... the body , and about the region of the diaphragm . The brain , on the contrary , shows no sign of being a seat * Tom . vii . p . 12 , 1758 . of perception . In the head there are pure sensations 130 EVOLUTION , OLD and new .
Página 131
... body that can feel . The blood , lymphs , and all other fluids , the fats , bone , flesh , and all other solids , are of themselves void of sensation . And so also is the brain ; it is a soft K 2 BUFFON - FULLER QUOTATIONS . 131.
... body that can feel . The blood , lymphs , and all other fluids , the fats , bone , flesh , and all other solids , are of themselves void of sensation . And so also is the brain ; it is a soft K 2 BUFFON - FULLER QUOTATIONS . 131.
Página 132
... brain ; it is a soft and inelastic substance , incapable therefore of producing or of propagating the movement , vibrations , or concussions which result in perception . The meninges , on the other hand , are exceedingly sensitive , and ...
... brain ; it is a soft and inelastic substance , incapable therefore of producing or of propagating the movement , vibrations , or concussions which result in perception . The meninges , on the other hand , are exceedingly sensitive , and ...
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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.