The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
Результаты поиска по книге
Результаты 1 – 5 из 30
Стр. 29
... harmonizing with it in the main characters of their organization ; and , secondly , by the more special characteristics , which place the animal in its Own rank and station among its kindred . own immediate SYSTEMATIC ARRANGEMENT . 29.
... harmonizing with it in the main characters of their organization ; and , secondly , by the more special characteristics , which place the animal in its Own rank and station among its kindred . own immediate SYSTEMATIC ARRANGEMENT . 29.
Стр. 33
... system is contained . It is thus established that the systematic classification of the animal kingdom is based on certain prominent characteristics of form and internal structure ; and it is GRADATIONS WITHIN THE TYPE . 33.
... system is contained . It is thus established that the systematic classification of the animal kingdom is based on certain prominent characteristics of form and internal structure ; and it is GRADATIONS WITHIN THE TYPE . 33.
Стр. 34
... systematic diagnosis , may be displayed in full perfection . But this is imme- diately succeeded by a further observation , that of gra- dations within the type . When we previously compared the polype and the bee , and were obliged to ...
... systematic diagnosis , may be displayed in full perfection . But this is imme- diately succeeded by a further observation , that of gra- dations within the type . When we previously compared the polype and the bee , and were obliged to ...
Стр. 35
... systematic subdivisions , descending even to species according to the criterion of anatomical perfection ; and these found expression only in diagrams of highly ramified trees . Branches ap- peared which terminated after a brief ...
... systematic subdivisions , descending even to species according to the criterion of anatomical perfection ; and these found expression only in diagrams of highly ramified trees . Branches ap- peared which terminated after a brief ...
Стр. 36
... systematic trees completes itself into one vast tree , of which the main branches are re- presented by the types . Had the systematizers of the old school been familiar with the construction of plants and animals , they would have first ...
... systematic trees completes itself into one vast tree , of which the main branches are re- presented by the types . Had the systematizers of the old school been familiar with the construction of plants and animals , they would have first ...
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.