On the Origin of Species by Means of Natural Selection |
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Page v
... naturalists , and several who have not particularly studied natural history , believe , on the other hand , that ... naturalist published his Philosophie Zoologique in 1809 , and his In- troduction to his Hist . Nat . des animaux sans ...
... naturalists , and several who have not particularly studied natural history , believe , on the other hand , that ... naturalist published his Philosophie Zoologique in 1809 , and his In- troduction to his Hist . Nat . des animaux sans ...
Page 10
... naturalists , some of them personally unknown to me . I cannot , however , let this opportunity pass without ... naturalist , reflecting on the mutual affini- ties of organic beings , on their embryological relations , their geographical ...
... naturalists , some of them personally unknown to me . I cannot , however , let this opportunity pass without ... naturalist , reflecting on the mutual affini- ties of organic beings , on their embryological relations , their geographical ...
Page 11
... Naturalists continually refer to external conditions , such as climate , food , & c . , as the only possible cause of variation . In one very limited sense , as we shall hereafter see , this may be true ; but it is preposterous to ...
... Naturalists continually refer to external conditions , such as climate , food , & c . , as the only possible cause of variation . In one very limited sense , as we shall hereafter see , this may be true ; but it is preposterous to ...
Page 13
... naturalists entertain , and which I formerly enter tained - namely , that each species has been independently created - is erroneous . I am fully convinced that species are not immutable ; but that those belonging to what are called the ...
... naturalists entertain , and which I formerly enter tained - namely , that each species has been independently created - is erroneous . I am fully convinced that species are not immutable ; but that those belonging to what are called the ...
Page 20
... naturalists — namely , that our domestic varieties , when run wild , gradually but certainly revert in character to their aboriginal stocks . Hence it has been argued that no deductions can be drawn from domestic races to species in a ...
... naturalists — namely , that our domestic varieties , when run wild , gradually but certainly revert in character to their aboriginal stocks . Hence it has been argued that no deductions can be drawn from domestic races to species in a ...
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Common terms and phrases
accumulated adapted affinities allied species America amount ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic 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 hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living look male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation perfect pigeons pistil plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rudimentary seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder tend theory tion trees variability variation varieties vary whole widely