On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeThis is the 'second edition' of Darwin's Origin of Species. |
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Page xi
... favourable , to Man's power of Selection - - 7-43 Variability- CHAPTER II . VARIATION Under Nature . Individual differences Doubtful species - ― Wide ranging , much diffused , and common species vary most - Spe- cies of the larger ...
... favourable , to Man's power of Selection - - 7-43 Variability- CHAPTER II . VARIATION Under Nature . Individual differences Doubtful species - ― Wide ranging , much diffused , and common species vary most - Spe- cies of the larger ...
Page xii
... favourable and unfavourable to Natural Selection , namely , intercrossing , isolation , number of individuals - Slow action Extinction caused by Natural Selection - Divergence of Cha- racter , related to the diversity of inhabitants of ...
... favourable and unfavourable to Natural Selection , namely , intercrossing , isolation , number of individuals - Slow action Extinction caused by Natural Selection - Divergence of Cha- racter , related to the diversity of inhabitants of ...
Page 4
... favourable to variation . In the next chapter the Struggle for Existence amongst all organic beings throughout the world , which inevi- tably follows from the high geometrical ratio of their increase , will be treated of . This is the 4 ...
... favourable to variation . In the next chapter the Struggle for Existence amongst all organic beings throughout the world , which inevi- tably follows from the high geometrical ratio of their increase , will be treated of . This is the 4 ...
Page 7
... favourable to Man's power of Selection . WHEN we look to the individuals of the same variety or sub - variety of our older cultivated plants and ani- mals , one of the first points which strikes us , is , that they generally differ more ...
... favourable to Man's power of Selection . WHEN we look to the individuals of the same variety or sub - variety of our older cultivated plants and ani- mals , one of the first points which strikes us , is , that they generally differ more ...
Page 28
... favourable circumstance for the production of distinct breeds , that male and female pigeons can be easily mated for life ; and thus different breeds can be kept together in the same aviary . The I have discussed the probable origin of ...
... favourable circumstance for the production of distinct breeds , that male and female pigeons can be easily mated for life ; and thus different breeds can be kept together in the same aviary . The I have discussed the probable origin of ...
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Common terms and phrases
accumulated adapted affinities allied species America amount analogous ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable Fcap fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest oceanic islands offspring organisation perfect pigeons plants pollen present probably produced progenitor racters ranked reciprocal crosses remarked resemble rock-pigeon rudimentary organs seeds sexual selection Silurian slight South America sterility structure struggle successive supposed tend theory tion variability variations varieties vary whole widely