On the Genesis of SpeciesD. Appleton, 1871 - 314 стор. |
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Сторінка 6
... MINUTE AND GRADUAL MODIFICATIONS . There are Difficulties as to Minute Modifications , even if not fortuitous . - Examples of Sudden and Considerable Modifications of Different Kinds . - Prof . Owen's View.- Mr. Wallace . - Prof ...
... MINUTE AND GRADUAL MODIFICATIONS . There are Difficulties as to Minute Modifications , even if not fortuitous . - Examples of Sudden and Considerable Modifications of Different Kinds . - Prof . Owen's View.- Mr. Wallace . - Prof ...
Сторінка 17
... minute variations of any kind and in any direction . Past time has been practically infinite . Every individual has to endure a very severe struggle for existence , owing to the tendency to geometrical increase of all kinds of animals ...
... minute variations of any kind and in any direction . Past time has been practically infinite . Every individual has to endure a very severe struggle for existence , owing to the tendency to geometrical increase of all kinds of animals ...
Сторінка 19
... minute in size , and never cut the gum , but are reabsorbed without ever coming into use , while no other teeth succeed them or represent them in the adult condition of those animals . The mammary glands of all male beasts constitute ...
... minute in size , and never cut the gum , but are reabsorbed without ever coming into use , while no other teeth succeed them or represent them in the adult condition of those animals . The mammary glands of all male beasts constitute ...
Сторінка 32
... minute organic atoms , termed " gemmules , " which atoms are supposed to be generated in every part of every organ , to be in constant circulation about the body , and to have the power of reproduction . Moreover , atoms from every part ...
... minute organic atoms , termed " gemmules , " which atoms are supposed to be generated in every part of every organ , to be in constant circulation about the body , and to have the power of reproduction . Moreover , atoms from every part ...
Сторінка 35
... minute and rudimentary beginnings , the slight and infini- tesimal commencements of structures , however useful those structures may afterward become . Now , it is distinctly enunciated by Mr. Darwin , that the spontaneous variations ...
... minute and rudimentary beginnings , the slight and infini- tesimal commencements of structures , however useful those structures may afterward become . Now , it is distinctly enunciated by Mr. Darwin , that the spontaneous variations ...
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5th edit action of Natural acts admit affinity Animals and Plants annelids apes appear assertion atoms believe BIRD OF PARADISE birds body bones brought forward 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
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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 291 - The teleological and the mechanical views of nature are not, necessarily, mutually exclusive. On the contrary, the more purely a mechanist the speculator is, the more firmly does he assume a primordial molecular arrangement of which all the phenomena of the universe...
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 202 - In the future I see open fields for far more important researches. Psychology will be securely based on the foundation already well laid by Mr. Herbert Spencer, that of the necessary acquirement of each mental power and capacity by gradation.
Сторінка 208 - ... that there exists a being in whom all the excellences which the highest human mind can conceive, exist in a degree inconceivable to us, I am informed that the world is ruled by a being whose attributes are infinite, but what they are we cannot learn, nor what are the principles of his government, except that the highest human morality which we are capable of conceiving does not sanction them; convince me of it and I will bear my fate as I may.
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 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 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...