도서 본문에서
33개의 결과 중 1 - 5개
18 페이지
... believe this similo largely speaks the truth . Tho green and budding twigs may represent existing species ; and those produced during each former year may represent the long succession of extinct spo- cies . At onch period of growth all ...
... believe this similo largely speaks the truth . Tho green and budding twigs may represent existing species ; and those produced during each former year may represent the long succession of extinct spo- cies . At onch period of growth all ...
19 페이지
... believe it has been with the great Tree of Life , which fills with its dead and broken branches the crust of the earth , and covers the surface with its over - branching and beautiful ramifi cations . " It may also be noted that there ...
... believe it has been with the great Tree of Life , which fills with its dead and broken branches the crust of the earth , and covers the surface with its over - branching and beautiful ramifi cations . " It may also be noted that there ...
26 페이지
... believe that variability is an inherent and necessary contingency , under all circum- stances , with all organic beings , as some authors have thought . " No one supposes variation could occur under all circumstances ; but the facts on ...
... believe that variability is an inherent and necessary contingency , under all circum- stances , with all organic beings , as some authors have thought . " No one supposes variation could occur under all circumstances ; but the facts on ...
27 페이지
... believe that any ornithologist would place the English carrier , the short - faced tumbler , the runt , the barb , pouter , and fantail , in the same genus ; more especially as in each of these breeds several truly inherited sub ...
... believe that any ornithologist would place the English carrier , the short - faced tumbler , the runt , the barb , pouter , and fantail , in the same genus ; more especially as in each of these breeds several truly inherited sub ...
40 페이지
... believe to be the most effective of all checks , I estimated that the winter of 1854-55 destroyed four - fifths of the birds in my own grounds ; and this is a tremendous destruc- - tion , when we remember that ten per cent . Is an ...
... believe to be the most effective of all checks , I estimated that the winter of 1854-55 destroyed four - fifths of the birds in my own grounds ; and this is a tremendous destruc- - tion , when we remember that ten per cent . Is an ...
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actual adaptation Agassiz American appears argument atheistic auroch bald cypress balls botanists California Candolle common conclusion connection creation Creator Cretaceous crystalline lens Darwin Darwin's theory derivative hypothesis descendants distinct divergence diversification divine doctrine equally Europe evidence evolution explain extinct facts favor final causes flora force forms fossil genera genus geographical geological George Bentham glands Glyptostrobus gradations ground havo human idea individuals infer insects instance Japan laws least less living matter means mind miocene natural history natural selection natural theology naturalists nebular hypothesis North objections organic world origin of species particular peculiar perhaps period philosophical phyllotaxis physical plants and animals present primordial probably proof prove question races redwoods regard region remarks reviewer samo scientific Sequoia sort succession sundew supernatural suppose Taxodium tertiary theistic theologians theology theso things thought tion tive trees varieties vary vegetable whole
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133 페이지 - And God said, Let the earth bring forth the living creature after his kind, cattle, and creeping thing, and beast of the earth after his kind: and it was so.
147 페이지 - To my mind it accords better with what we know of the laws impressed on matter by the Creator, that the production and extinction of the past and present inhabitants of the world should have been due to secondary causes, like those determining the birth and death of the individual.
233 페이지 - England and some other parts of Europe. So the Sequoias, now remarkable for their restricted station and numbers, as well as for their extraordinary size, are of an ancient stock ; their ancestors and kindred formed a large part of the forests which flourished throughout the polar regions, now desolate and iceclad, and which extended into low latitudes in Europe.
271 페이지 - But the only distinct meaning of that word is stated, fixed, or settled; since what is natural, as much requires and presupposes an intelligent agent to render it so, ie to effect it continually or at stated times, as what is supernatural or miraculous does to effect it for once. And from hence it must follow, that persons...
29 페이지 - Altogether at least a score of pigeons might be chosen, which, if shown to an ornithologist, and he were told that they were wild birds, would certainly be ranked by him as well-defined species.
178 페이지 - Hilaire, that is, against the supposition that time brings about a gradual alteration of whole species ; but it goes for little against Darwin, unless it be proved that species never vary, or that the perpetuation of a variety necessitates the extinction of the parent breed. For Darwin clearly maintains— what the facts warrant— that the mass of a species remains fixed so long as it exists at all, though it may set off a variety now and then. The variety may finally supersede the parent form...
295 페이지 - ... part, without sensible effects. The little prisoner is not crushed and suddenly destroyed, as is sometimes supposed, for I have often liberated captive flies and spiders, which sped away as fast as fear or joy could hasten them. At other times I have found them enveloped in a fluid of mucilaginous consistence, which seems to act as a solvent, the insects being more or less consumed in it.
15 페이지 - ... either hand, and say how much of truth there may be in each? The present reviewer has not the presumption to undertake such a task. Having no prepossession in favor of naturalistic theories, but struck with the eminent ability of Mr. Darwin's work, and charmed with its fairness, our humbler duty will be performed if, laying aside prejudice as much as we can, we shall succeed in giving a fair account of its method and argument, offering by the way a few suggestions, such as might occur to any...
31 페이지 - If strange and rare deviations of structure are really inherited, less strange and commoner deviations may be freely admitted to be inheritable. Perhaps the correct way of viewing the whole subject would be, to look at the inheritance of every character whatever as the rule, and non-inheritance as the anomaly.