Darwiniana: Essays and Reviews Pertaining to DarwinismD. Appleton, 1878 - Всего страниц: 396 |
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Стр. 27
... doubt that if other animals and plants , equal in number to our domesticated productions , and belonging to equally diverse classes and coun- tries , were taken from a state of nature , and could be made to breed for an equal number of ...
... doubt that if other animals and plants , equal in number to our domesticated productions , and belonging to equally diverse classes and coun- tries , were taken from a state of nature , and could be made to breed for an equal number of ...
Стр. 30
... doubt , but closer - the variety sur- vives in the offspring ; whose progeny now has a re- doubled tendency to produce its own like ; whose pro- geny again is almost sure to produce its like , since it is much the same whether it takes ...
... doubt , but closer - the variety sur- vives in the offspring ; whose progeny now has a re- doubled tendency to produce its own like ; whose pro- geny again is almost sure to produce its like , since it is much the same whether it takes ...
Стр. 31
... doubts if there is a true re- version in the case of plants . Mr. Darwin's observa- tions rather favor it in the animal kingdom . With mingled races reversion seems well made out in the case of pigeons . The common opinion upon this sub ...
... doubts if there is a true re- version in the case of plants . Mr. Darwin's observa- tions rather favor it in the animal kingdom . With mingled races reversion seems well made out in the case of pigeons . The common opinion upon this sub ...
Стр. 44
... doubt that the swiftest and slimmest wolves would have the best chance of surviving , and so be preserved or selected - pro- vided always that they retained strength to master their prey at this or at some other period of the year ...
... doubt that the swiftest and slimmest wolves would have the best chance of surviving , and so be preserved or selected - pro- vided always that they retained strength to master their prey at this or at some other period of the year ...
Стр. 47
... doubt that the theory of descent with modification embraces all the members of the same class , " and he concedes that analogy would press the conclusion still further ; while he admits that " the more distinct the forms are , the more ...
... doubt that the theory of descent with modification embraces all the members of the same class , " and he concedes that analogy would press the conclusion still further ; while he admits that " the more distinct the forms are , the more ...
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adaptation Agassiz appears argument atheistic auroch botanists Candolle Cloth common conclusion connection creation Darwin Darwin's theory Darwinian derivation descendants design in Nature direct divine doctrine doubt Drosera dysteleology equally evidence of design evolution existence explain extinct facts favor final causes force forms fossil genera geological glands Glyptostrobus gradation ground Hodge human hypothesis idea illustration individuals inference insects instance laws less living matter means ment mind miocene natural history natural selection natural theology naturalists nebular hypothesis object origin of species particular peculiar perhaps philosophical phyllotaxis physical plants and animals pollen present principle probably produced Prof propagated prove purpose question races reason regard remarks Review Sarracenia scientific seems sense Sequoia sexual reproduction sort structure succession suggest suppose Taxodium teleology tentacles tertiary theistic things thought tion tive trees variation varieties vary vegetable Westminster Reviewer whole
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Стр. 131 - 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.
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Стр. 38 - There is no exception to the rule that every organic being naturally increases at so high a rate, that if not destroyed, the earth would soon be covered by the progeny of a single pair.
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Стр. 6 - Essays on Astronomy. A Series of Papers on Planets and Meteors, the Sun and Sun-surrounding Space, Stars and Star Cloudlets. By RA Proctor, BA With 10 Plates and 24 Woodcuts.
Стр. 276 - My substance was not hid from thee, when I was made in secret, and curiously wrought in the lowest parts of the earth.
Стр. 18 - The green and budding twigs may represent existing species; and those produced during each former year may represent the long succession of extinct species. At each period of growth all the growing twigs have tried to branch out on all sides, and to overtop and kill the surrounding twigs and branches, in the same manner as species and groups of species have tried to overmaster other species in the great battle for life.
Стр. 104 - I can entertain no doubt, after the most deliberate study and dispassionate judgment of which I am capable, that the view which most naturalists until recently entertained, and which I formerly entertained, namely, that each species has been independently created, is erroneous. I am fully convinced that species are not immutable...
Стр. 18 - Of the many twigs which flourished when the tree was a mere bush, only two or three, now grown into great branches, yet survive and bear the other branches; so with the species which lived during long-past geological periods, very few have left living and modified descendants.
Стр. 40 - Climate plays an important part in determining the average numbers of a species, and periodical seasons of extreme cold or drought seem to be the most effective of all checks.