Darwiniana: Essays and Reviews Pertaining to DarwinismD. Appleton, 1878 - 396 páginas |
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Página vii
... prove Transmutation . - Known Extent of Variation . — Cause of Likeness unknown . - Artificial Selection . - Reversion . - In- terbreeding . - Natural Selection . - Classification tentative.— What Darwin assumes . — Argument stated ...
... prove Transmutation . - Known Extent of Variation . — Cause of Likeness unknown . - Artificial Selection . - Reversion . - In- terbreeding . - Natural Selection . - Classification tentative.— What Darwin assumes . — Argument stated ...
Página 13
... prove that the species we recognize have not been in- dependently created , as such , but have descended , like varieties , from other species . Varieties , on this view , are incipient or possible species : species are varieties of a ...
... prove that the species we recognize have not been in- dependently created , as such , but have descended , like varieties , from other species . Varieties , on this view , are incipient or possible species : species are varieties of a ...
Página 14
... proved only indirectly , by the failure of every attempt to refer the phenomena in question to causal laws . But , however originated , and whatever be thought of Mr. Darwin's arduous undertaking in this respect , it is certain that ...
... proved only indirectly , by the failure of every attempt to refer the phenomena in question to causal laws . But , however originated , and whatever be thought of Mr. Darwin's arduous undertaking in this respect , it is certain that ...
Página 20
... proved true ( p . 449 ) ; and p . 338 : " Agassiz insists that ancient animals resemble to a certain extent the embryos of recent animals of the same classes ; or that the geological succession of ex- tinct forms is in some degree ...
... proved true ( p . 449 ) ; and p . 338 : " Agassiz insists that ancient animals resemble to a certain extent the embryos of recent animals of the same classes ; or that the geological succession of ex- tinct forms is in some degree ...
Página 24
... upon the first , for , as he does assign real causes , he is bound to prove their adequacy . It should be kept in mind that , while all direct proof of independent origination is attainable from the nature of 24 DARWINIANA .
... upon the first , for , as he does assign real causes , he is bound to prove their adequacy . It should be kept in mind that , while all direct proof of independent origination is attainable from the nature of 24 DARWINIANA .
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Términos y frases comunes
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
Pasajes populares
Página 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.
Página 3 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Página 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.
Página 6 - ROBERTSON, The late Rev. FW, MA—TM& and Letters of. Edited by the Rev. Stopford Brooke, MA I. Two vols., uniform with the Sermons. With Steel Portrait. Crown 8vo, "js.
Página 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.
Página 276 - My substance was not hid from thee, when I was made in secret, and curiously wrought in the lowest parts of the earth.
Página 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.
Página 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...
Página 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.
Página 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.