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 73
... considered by botanists as characters of the most trifling importance : yet we hear from an excellent horticulturist , Downing , that in the United States smooth - skinned fruits suffer far more from a beetle , a curculio , than those ...
... considered by botanists as characters of the most trifling importance : yet we hear from an excellent horticulturist , Downing , that in the United States smooth - skinned fruits suffer far more from a beetle , a curculio , than those ...
Page 211
... considered . The distinction has probably been slurred over , owing to the sterility in both cases being looked on as a special endow- ment , beyond the province of our reasoning powers . The fertility of varieties , that is of forms ...
... considered . The distinction has probably been slurred over , owing to the sterility in both cases being looked on as a special endow- ment , beyond the province of our reasoning powers . The fertility of varieties , that is of forms ...
Page 389
... considered real if we admit the following propositions - namely , that gradations in the perfection of any organ or instinct , which we may consider , either do now exist or could have existed , each good of its kind ; that all organs ...
... considered real if we admit the following propositions - namely , that gradations in the perfection of any organ or instinct , which we may consider , either do now exist or could have existed , each good of its kind ; that all organs ...
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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