The Doctrine of Descent and DarwinismD. Appleton, 1875 - 334 من الصفحات |
من داخل الكتاب
النتائج 1-5 من 18
الصفحة 61
... Tertiary formation . Pliocene . Miocene . Eocene . 4. Cretaceous formation . Sinon . White Chalk and Chalk Marl Turon . Part of the Chalk Marl Kinoman . Upper Greensand Gault . Neocoman ( Wealden ) . 5. Jurassic formation or Oolite ...
... Tertiary formation . Pliocene . Miocene . Eocene . 4. Cretaceous formation . Sinon . White Chalk and Chalk Marl Turon . Part of the Chalk Marl Kinoman . Upper Greensand Gault . Neocoman ( Wealden ) . 5. Jurassic formation or Oolite ...
الصفحة 62
... the Diluvium belong the vast mud deposits of the great rivers , alternating with sand banks , the clay and loess formations caused by the removal of the soil TERTIARY FORMATION - CHALK . 63 by the drainage of 62 THE DOCTRINE OF DESCENT .
... the Diluvium belong the vast mud deposits of the great rivers , alternating with sand banks , the clay and loess formations caused by the removal of the soil TERTIARY FORMATION - CHALK . 63 by the drainage of 62 THE DOCTRINE OF DESCENT .
الصفحة 63
... tertiary formation , may be regarded as that during which , at least , the skeleton of the pre- sent continents finally attained its integral configuration . Within its limits fall the erection and upheaval of the great mountain chains ...
... tertiary formation , may be regarded as that during which , at least , the skeleton of the pre- sent continents finally attained its integral configuration . Within its limits fall the erection and upheaval of the great mountain chains ...
الصفحة 71
... Tertiary era . To the Cephalopoda we must return again . Of the Vertebrata in the Silurian strata we know only the remains of peculiar Fishes whose kindred must be sought among the sharks and rays . In the period of the Devonian or ...
... Tertiary era . To the Cephalopoda we must return again . Of the Vertebrata in the Silurian strata we know only the remains of peculiar Fishes whose kindred must be sought among the sharks and rays . In the period of the Devonian or ...
الصفحة 78
... Tertiary period dawns the state of things now existing . Palms and arboraceous plants charac- terize the vegetation . The animal world has likewise remained essentially the same from the earliest sections of the Tertiary period until ...
... Tertiary period dawns the state of things now existing . Palms and arboraceous plants charac- terize the vegetation . The animal world has likewise remained essentially the same from the earliest sections of the Tertiary period until ...
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
according adaptation already Ammonites Amphibians animal world apes appearance Ascidian become birds brain causes Cetacea character characteristics comparative anatomy complete connection continent Darwin dentition derivation diverge doctrine of Descent Echinoderms embryonic Eocene exhibit external facts families fauna fish formation fossil Ganoids Gastrula genera genus geological Goethe grade gradually groups Haeckel heredity higher horse human hypothesis idea individual infer intermediate forms islands lancelet language larva larvæ likewise linguistic Linnæus lower mammals Marsupials Medusa ment merely metamorphosis modifications morphological mutability natural selection observation Oolite organisms origin peculiar pedigree perfect period phase phenomena placenta plants polypes possess present primordial progenitors races relations remains reproduction reptiles resemblance Rütimeyer says scarcely scientific separate sexual Silurian skull species sponges strata structure systematic terrestrial animals Tertiary theory of selection tion transformation transition true Ungulata Ungulates varieties vegetal vertebral column Vertebrata vertebrate animals whole
مقاطع مشهورة
الصفحة 162 - 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.18 Darwin always knew that his views would be controversial. A few days before The Origin of Species appeared, Darwin wrote, in a letter to Wallace, 'God knows what...
الصفحة 160 - I had not formerly sufficiently considered the existence of many structures which appear to be, as far as we can judge, neither beneficial nor injurious ; and this I believe to be one of the greatest oversights as yet detected in my work.
الصفحة 160 - Na'geli on plants, and the remarks by various authors with respect to animals, more especially those recently made by Professor Broca, that in the earlier editions of my Origin of Species I perhaps attributed too much to the action of natural selection or the survival of the fittest.