The Doctrine of Descent and DarwinismD. Appleton, 1875 - 334 من الصفحات |
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الصفحة
... DISTRIBUTION OF ANIMALS IN THE LIGHT OF THE DOCTRINE OF DERIVATION + XI . The Pedigree of Vertebrate ANIMALS MAN REFERENCES AND QUOTATIONS 195 222 248 XII . • 282 3II LIST OF ILLUSTRATIONS . FIG . I. LEGS OF BIRD viii CONTENTS .
... DISTRIBUTION OF ANIMALS IN THE LIGHT OF THE DOCTRINE OF DERIVATION + XI . The Pedigree of Vertebrate ANIMALS MAN REFERENCES AND QUOTATIONS 195 222 248 XII . • 282 3II LIST OF ILLUSTRATIONS . FIG . I. LEGS OF BIRD viii CONTENTS .
الصفحة
... BIRD AND CHICK 2. MEDUSA , TIAROPSIS DIADEMA 3. STAURIDIUM . MEDUSA , CLADONEMA RADIATUM 4 . SPERMATOZOA 5. SECTION OF LARVA OF CALCAREOUS Sponge 6. EMBRYO OF HYDROPHILUS PICEUS PAGE 9 31 43 45 • ༩༢ 53 7 . SESSILE STAGE OF CRINOID 56 IO ...
... BIRD AND CHICK 2. MEDUSA , TIAROPSIS DIADEMA 3. STAURIDIUM . MEDUSA , CLADONEMA RADIATUM 4 . SPERMATOZOA 5. SECTION OF LARVA OF CALCAREOUS Sponge 6. EMBRYO OF HYDROPHILUS PICEUS PAGE 9 31 43 45 • ༩༢ 53 7 . SESSILE STAGE OF CRINOID 56 IO ...
الصفحة 9
... bird , in its individual parts , may be traced back without difficulty to the anterior extremities of a reptile or a mammal . But the leg of a bird , as a com- plete organ does not har- monize with the leg of other vertebrata until the ...
... bird , in its individual parts , may be traced back without difficulty to the anterior extremities of a reptile or a mammal . But the leg of a bird , as a com- plete organ does not har- monize with the leg of other vertebrata until the ...
الصفحة 10
... bird only one . The history of development shows that out of the ma- terial which in man is applied to the formation of the malleus and incus , two other portions of the skull are evolved in the bird , having little or nothing to do ...
... bird only one . The history of development shows that out of the ma- terial which in man is applied to the formation of the malleus and incus , two other portions of the skull are evolved in the bird , having little or nothing to do ...
الصفحة 34
... bird or a mammal , of one of the parasitic crustacea with a crayfish or an insect , shows , as the older zoology represented it , that in the actual forms the ground plan , or " ideal types , " find very diversified expression . A ...
... bird or a mammal , of one of the parasitic crustacea with a crayfish or an insect , shows , as the older zoology represented it , that in the actual forms the ground plan , or " ideal types , " find very diversified expression . A ...
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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.