The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen1AMS Press, 1972 - 479 páginas 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! |
Dentro del libro
Resultados 1-3 de 48
Página 99
... laws , and by laws the sequence of events as ascertained by us . With a little familiarity such superficial objections will be forgotten . We shall best understand the probable course of natural selection by taking the case of a country ...
... laws , and by laws the sequence of events as ascertained by us . With a little familiarity such superficial objections will be forgotten . We shall best understand the probable course of natural selection by taking the case of a country ...
Página 164
... LAWS OF VARIATION . Efects of changed conditions - Use and disuse , combined with natural selection ; organs of flight and of vision - Acclimatisation -Correlated variation - Compensation and economy of growth- False correlations ...
... LAWS OF VARIATION . Efects of changed conditions - Use and disuse , combined with natural selection ; organs of flight and of vision - Acclimatisation -Correlated variation - Compensation and economy of growth- False correlations ...
Página 203
... laws of variation is profound . Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied . But whenever we have the means of instituting a comparison , the same laws appear to have acted in ...
... laws of variation is profound . Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied . But whenever we have the means of instituting a comparison , the same laws appear to have acted in ...
Contenido
CHAPTER I | 5 |
VARIATION UNDER NATURE | 51 |
Its bearing on natural selectionThe term used in a wide sense | 75 |
Derechos de autor | |
Otras 5 secciones no mostradas
Otras ediciones - Ver todas
The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2016 |
On the Origin of Species by Means of Natural Selection Charles Darwin Sin vista previa disponible - 2016 |
The Origin of Species by Means of Natural Selection: Or the Preservation of ... Charles Darwin Sin vista previa disponible - 2018 |
Términos y frases comunes
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