Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1884 - 351 من الصفحات |
من داخل الكتاب
النتائج 1-5 من 75
الصفحة xi
... Period · These Means of Transport not accidental The Theory of Creation inadequate 118 • 119 122 • Causes of a Glacial Climate 123 Difficulties not yet removed 124 • Identity of the Species of Islands with those of the Mainland ex ...
... Period · These Means of Transport not accidental The Theory of Creation inadequate 118 • 119 122 • Causes of a Glacial Climate 123 Difficulties not yet removed 124 • Identity of the Species of Islands with those of the Mainland ex ...
الصفحة 18
... period of growth , before the shape or existence of any part of the flower is of importance for the well - being of the plant . Can we feel satisfied by saying that each orchid was created , exactly as we now see it , on a certain ...
... period of growth , before the shape or existence of any part of the flower is of importance for the well - being of the plant . Can we feel satisfied by saying that each orchid was created , exactly as we now see it , on a certain ...
الصفحة 21
... period twisted , causing the labellum to assume the position of a lower petal , so that insects can easily visit the flower ; but from slow changes in the form or position of the petals , or from new sorts of in- sects visiting the ...
... period twisted , causing the labellum to assume the position of a lower petal , so that insects can easily visit the flower ; but from slow changes in the form or position of the petals , or from new sorts of in- sects visiting the ...
الصفحة 42
... period which no geologist considers extremely long . Page 308 . THEY PRESERVE VALUABLE RUINS . Archæologists ought to be grateful to worms , as they protect and preserve for an indefinitely long period every object , not liable to decay ...
... period which no geologist considers extremely long . Page 308 . THEY PRESERVE VALUABLE RUINS . Archæologists ought to be grateful to worms , as they protect and preserve for an indefinitely long period every object , not liable to decay ...
الصفحة 48
... period of the flowering of plants when transported from one climate to another . With animals the increased use or disuse of parts has had a more marked influence ; thus I find in the domestic duck that the bones of the wing weigh less ...
... period of the flowering of plants when transported from one climate to another . With animals the increased use or disuse of parts has had a more marked influence ; thus I find in the domestic duck that the bones of the wing weigh less ...
المحتوى
| 55 | |
| 61 | |
| 67 | |
| 73 | |
| 79 | |
| 85 | |
| 93 | |
| 99 | |
| 106 | |
| 113 | |
| 123 | |
| 129 | |
| 135 | |
| 142 | |
| 144 | |
| 152 | |
| 158 | |
| 165 | |
| 171 | |
| 177 | |
| 237 | |
| 243 | |
| 249 | |
| 256 | |
| 261 | |
| 268 | |
| 275 | |
| 282 | |
| 288 | |
| 294 | |
| 302 | |
| 305 | |
| 311 | |
| 317 | |
| 323 | |
| 336 | |
| 342 | |
| 348 | |
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
acquired action admit allied apes appear Asa Gray become believe birds blush body breeds Catarrhine cause characters closely Cloth DARWIN degree descended developed distinct species domestic doubt early effects eggs existence expression extinct eyes fact favorable feel females fertilization forms gemmules genera geotropism habit hair HERBERT SPENCER hermaphrodites highly horse Illustrations increase individuals inhabitants inherited insects instance intermediate islands kind labellum lancelet language larvæ less living lower animals males mammals manner ment mental mind modified monkeys movements muscles natural selection naturalists observed offspring organic Origin of Species papillæ parent peculiar period plants pollen possess present principle probably produced Professor progenitors Quadrumana quadrupeds races remarkable resemble rudimentary savages seeds seems seen sexes sexual selection slight South America structure suppose T. H. HUXLEY tend tendency tion transmitted utricle variability variations varieties various vertebræ whole wild worms young
مقاطع مشهورة
الصفحة i - 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.
الصفحة 347 - It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, and dependent upon each other in so complex a manner, have all been produced by laws acting around us.
الصفحة 110 - To suppose that the eye, with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I freely confess, absurd in the highest possible degree.
الصفحة 72 - The key is man's power of accumulative selection: nature gives successive variations; man adds them up in certain directions useful to him. In this sense he may be said to have made for himself useful breeds.
الصفحة 254 - It is incredible that all these facts should speak falsely. He who is not content to look, like a savage, at the phenomena of nature as disconnected, cannot any longer believe that man is the work of a separate act of creation.
الصفحة 44 - It may be doubted whether there are many other animals which have played so important a part in the history of the world, as have these lowly organised creatures.
الصفحة 308 - But as my conclusions have lately been much misrepresented, and it has been stated that I attribute the modification of species exclusively to natural selection, I may be permitted to remark that in the first edition of this work, and subsequently, I placed in a most conspicuous position — namely, at the close of the Introduction — the following words: "I am convinced that natural selection has been the main but not thé exclusive means of modification.