On the genesis of speciesD. Appleton and Company, 1871 - 314 стор. |
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Результати 1-5 із 21
Сторінка 33
... direct influence of surrounding conditions . The difficulties which appear to oppose themselves to the reception of " Natural Selection " or " the survival of the fittest , " as the one explanation of the origin of spe- cies , have no ...
... direct influence of surrounding conditions . The difficulties which appear to oppose themselves to the reception of " Natural Selection " or " the survival of the fittest , " as the one explanation of the origin of spe- cies , have no ...
Сторінка 64
... direct communication with the brain itself . Now , these complex and simultaneous coördinations could never have been produced by infinitesimal begin- nings , since , until so far developed as to effect the requi- site junctions , they ...
... direct communication with the brain itself . Now , these complex and simultaneous coördinations could never have been produced by infinitesimal begin- nings , since , until so far developed as to effect the requi- site junctions , they ...
Сторінка 67
... direct use to their possessors " in the struggle for life , and of no indirect utility as regards sexual selection , for fertilization takes place by the mere action of currents of water , and the least beautiful individual has fully as ...
... direct use to their possessors " in the struggle for life , and of no indirect utility as regards sexual selection , for fertilization takes place by the mere action of currents of water , and the least beautiful individual has fully as ...
Сторінка 73
... direct relation on the other . Again , the delicate and complex pedicellariæ of Echinoderms , with a certain process of devel- opment ( through a secondary larva ) found in that class , together with certain other exceptional modes of ...
... direct relation on the other . Again , the delicate and complex pedicellariæ of Echinoderms , with a certain process of devel- opment ( through a secondary larva ) found in that class , together with certain other exceptional modes of ...
Сторінка 80
... direct action of conditions upon animals and plants - in ways not yet fully understood - there being con- ceived to be at the same time a certain peculiar but limited power of response and adaptation in each animal and plant so acted on ...
... direct action of conditions upon animals and plants - in ways not yet fully understood - there being con- ceived to be at the same time a certain peculiar but limited power of response and adaptation in each animal and plant so acted on ...
Загальні терміни та фрази
5th edit action of Natural acts admit affinity Animals and Plants annelids apes appear assertion atoms beauty believe BIRD OF PARADISE birds body bones butterflies cause Cetacea chapter color complete conceivable conception considerable contended creation creatures Crustacea Darwin Darwinian Darwinian theory degree derived difficulty direct distinct evidence evolution evolved existence explain external facts favor fishes force fortuitous gemmules habits harmony Herbert Spencer homology Huxley Ibid ICHTHYOSAURUS indefinite individual innate power insects instances internal intuitions kind laws less limbs machairodus Malay Archipelago mammals manifestation marsupial matter means minute mode modifications moral Natural Selection objections observed Origin of Species Pangenesis peculiar phenomena Plants under Domestication PLESIOSAURUS possessed present preserved principle priori probably produced Prof pterodactyls race reason regard remarkable reptiles resemblance result says seems serial homology Silurian similar structure supposed tend tendency theism theory of Natural tion true Ungulata variations vertebrate Wallace wing
Популярні уривки
Сторінка 255 - There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved.
Сторінка 202 - In the distant future I see open fields for far more important researches. Psychology will be based on a new foundation, that of the necessary acquirement of each mental power and capacity by gradation. Light will be thrown on the origin of man and his history.
Сторінка 262 - Thus the consciousness of an Inscrutable Power manifested to us through all phenomena, has been growing ever clearer ; and must eventually be freed from its imperfections. The certainty that on the one hand such a Power exists, while on the other hand its nature transcends intuition and is beyond imagination, is the certainty towards which intelligence has from the first been progressing.
Сторінка 72 - The justice of these remarks cannot I think be disputed. If, for instance, a bird of some kind could procure its food more easily by having its beak curved, and if one were born with its beak strongly curved, and which consequently flourished, nevertheless there would be a very poor chance of this one individual perpetuating its kind to the exclusion of the common form...
Сторінка 217 - I believe that the experiences of utility organized and consolidated through all past generations of the human race, have been producing corresponding nervous modifications, which, by continued transmission and accumulation, have become in us certain faculties of moral intuition — certain emotions responding to right and wrong conduct, which have no apparent basis in the individual experiences of utility.
Сторінка 208 - I will call no being good, who is not what I mean when I apply that epithet to my fellow-creatures ; and if such a being can sentence me to hell for not so calling him, to hell I will go.
Сторінка 285 - Plato and Demosthenes, Aristotle and Isocrates, might have respectively excelled in each other's province, but that each was absorbed in his own; his words are emphatic ; "quorum uterque, suo studio delectatus, contemsit alterum.
Сторінка 36 - IF IT could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down.
Сторінка 113 - English greyhounds of the best breed, to hunt the hares which abound in that country. The great platform which is the scene of sport is at an elevation of about...