The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
Результаты поиска по книге
Результаты 1 – 5 из 24
Стр. 27
... creature were said to be perfect , that is , in corre- spondence with its purpose or idea , every one takes it for granted and self - evident that a standard of excellence exists , without taking account of the scale by which PROTISTA . 27.
... creature were said to be perfect , that is , in corre- spondence with its purpose or idea , every one takes it for granted and self - evident that a standard of excellence exists , without taking account of the scale by which PROTISTA . 27.
Стр. 56
... perfect , are alone able to fly ; not the others . And these mammals which , so long after birth , are unable to find their own food , and never rise from the ground , fancy themselves more highly organised than we ? ' " FIG . 8 . FIG ...
... perfect , are alone able to fly ; not the others . And these mammals which , so long after birth , are unable to find their own food , and never rise from the ground , fancy themselves more highly organised than we ? ' " FIG . 8 . FIG ...
Стр. 58
... perfect mammal ( and this is an un- founded hypothesis ) , the mammal must be considered as a more highly developed fish ; and , in that case , it is quite logical to say that the embryo of the vertebrate animal is originally a fish ...
... perfect mammal ( and this is an un- founded hypothesis ) , the mammal must be considered as a more highly developed fish ; and , in that case , it is quite logical to say that the embryo of the vertebrate animal is originally a fish ...
Стр. 77
... perfect Spatanga , with the most distinctly marked bilateral form , make their ap- pearance last of all . Between these extremes we find a host of genera and species distinguished from one another by mere shades , so that of two allied ...
... perfect Spatanga , with the most distinctly marked bilateral form , make their ap- pearance last of all . Between these extremes we find a host of genera and species distinguished from one another by mere shades , so that of two allied ...
Стр. 78
... perfect . Progression is only to be shown collectively ; in the concrete case it can rarely be demonstrated . " The Échinæ still predominate in the chalk . Recent discoveries of analogous animals , with soft and flexible persistent ...
... perfect . Progression is only to be shown collectively ; in the concrete case it can rarely be demonstrated . " The Échinæ still predominate in the chalk . Recent discoveries of analogous animals , with soft and flexible persistent ...
Другие издания - Просмотреть все
Часто встречающиеся слова и выражения
according adaptation already Ammonites Amphibians animal world apes appearance Ascidian become birds brain carboniferous causes Cetacea character characteristics comparative anatomy complete connection continent Darwin dentition derivation diverge doctrine of Descent Echinoderms embryonic Eocene exhibit existence 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 Insectivora intermediate forms islands lancelet language larva larvæ likewise linguistic 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 strata structure systematic terrestrial animals Tertiary theory of selection tion transformation transition true Ungulata Ungulates varieties vertebral column Vertebrata vertebrate animals whole
Популярные отрывки
Стр. 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...
Стр. 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.