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 29
... ancient Chinese encyclopædia . Explicit rules are laid down by some of the Roman classical writers . From passages in Genesis it is clear that the colour of domestic animals was at that early period attended to . Savages now sometimes ...
... ancient Chinese encyclopædia . Explicit rules are laid down by some of the Roman classical writers . From passages in Genesis it is clear that the colour of domestic animals was at that early period attended to . Savages now sometimes ...
Page 292
... ancient and recent , made together one grand system , for all are connected by generation . We can understand , from the continued tendency to divergence of character , why the more ancient a form is , the more it generally differs from ...
... ancient and recent , made together one grand system , for all are connected by generation . We can understand , from the continued tendency to divergence of character , why the more ancient a form is , the more it generally differs from ...
Page 381
... ancient progenitors , we can clearly see why ancient and extinct forms of life should resemble the embryos of their descendants - our existing species . Agassiz believes this to be a law of nature ; but I am bound to confess that I only ...
... ancient progenitors , we can clearly see why ancient and extinct forms of life should resemble the embryos of their descendants - our existing species . Agassiz believes this to be a law of nature ; but I am bound to confess that I only ...
Contents
VARIATION UNDER DOMESTICATION | 6 |
VARIATION UNDER NATURE | 38 |
STRUGGLE FOR EXISTENCE | 52 |
Copyright | |
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Common terms and phrases
accumulated adapted affinities allied species amount analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distant distinct species divergence domestic doubt eggs embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flower formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important increase in number individuals inhabitants inherited insects instance instincts intercrossing land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally oceanic islands offspring perfect pigeons pistil plants pollen present probably produced progenitor ranked reciprocal crosses remarked resemblance seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder theory tion trees variability variations vary whole widely