The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Том 1AMS Press, 1972 - Всего страниц: 479 This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy! |
Результаты поиска по книге
Результаты 1 – 3 из 22
Стр. 343
... cells of wax . At the other end of the series we have the cells of the hive - bee , placed in a double layer : each cell , as is well known , is an hexagonal prism , with the basal edges of its six sides bevelled so as to join an ...
... cells of wax . At the other end of the series we have the cells of the hive - bee , placed in a double layer : each cell , as is well known , is an hexagonal prism , with the basal edges of its six sides bevelled so as to join an ...
Стр. 344
... cells are always made at that degree of nearness to each other that they would have inter- sected or broken into ... cells . When one cell rests on three other cells , which , from the spheres being nearly of the same size , is very ...
... cells are always made at that degree of nearness to each other that they would have inter- sected or broken into ... cells . When one cell rests on three other cells , which , from the spheres being nearly of the same size , is very ...
Стр. 351
... cell till a large part both of that cell and of the adjoining cells has been built . This capacity in bees . of laying down under certain circumstances a rough wall in its proper place between two just - commenced cells , is important ...
... cell till a large part both of that cell and of the adjoining cells has been built . This capacity in bees . of laying down under certain circumstances a rough wall in its proper place between two just - commenced cells , is important ...
Содержание
CHAPTER I | 5 |
VARIATION UNDER NATURE | 51 |
Its bearing on natural selectionThe term used in a wide sense | 75 |
Авторские права | |
Не показаны другие разделы: 5
Другие издания - Просмотреть все
The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Недоступно для просмотра - 2016 |
The Origin of Species by Means of Natural Selection: Or the Preservation of ... Charles Darwin Недоступно для просмотра - 2018 |
Часто встречающиеся слова и выражения
acquired adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young