On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for Life |
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Page xiii
... hand , believe that species undergo modification , and that the existing forms of life have descended by true generation from pre - existing forms . Passing over authors from the classical period to that of Buffon , with whose writings ...
... hand , believe that species undergo modification , and that the existing forms of life have descended by true generation from pre - existing forms . Passing over authors from the classical period to that of Buffon , with whose writings ...
Page xix
... hand , we view ' Persistent Types ' in relation to that hypothesis which supposes the species living at any time to be the result of the gradual modification of pre - existing species - a hypothesis which , though unproven , and sadly ...
... hand , we view ' Persistent Types ' in relation to that hypothesis which supposes the species living at any time to be the result of the gradual modification of pre - existing species - a hypothesis which , though unproven , and sadly ...
Page 9
... hand , we see domesticated animals and plants , though often weak and sickly , yet breeding quite freely under con- finement ; and when , on the other hand , we see indivi- duals , though taken young from a state of nature , per- fectly ...
... hand , we see domesticated animals and plants , though often weak and sickly , yet breeding quite freely under con- finement ; and when , on the other hand , we see indivi- duals , though taken young from a state of nature , per- fectly ...
Page 42
... hand , nurserymen , from raising large stocks of the same plants , are generally far more successful than amateurs in getting new and valuable varieties . The keeping of a large number of individuals of a species in any country requires ...
... hand , nurserymen , from raising large stocks of the same plants , are generally far more successful than amateurs in getting new and valuable varieties . The keeping of a large number of individuals of a species in any country requires ...
Page 43
... hand , cats , from their nocturnal rambling habits , cannot be easily matched , and , although so much valued by women and children , we hardly ever see a distinct breed kept up ; such breeds as we do sometimes see are almost always ...
... hand , cats , from their nocturnal rambling habits , cannot be easily matched , and , although so much valued by women and children , we hardly ever see a distinct breed kept up ; such breeds as we do sometimes see are almost always ...
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Common terms and phrases
accumulated adapted affinities allied species America amount analogous ancient animals appear Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living male mammals manner Marsupials migration modification modified descendants mongrels natural selection naturalists nearly nest occasionally offspring organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor racter ranked reciprocal crosses remarked resemble rudimentary organs seeds Silurian slight South America sterility structure struggle successive supposed tend theory tion variability variations varieties vary whole widely