The Origin of Species by Means of Natural Selection Or, The Preservation of Favored Races in the Struggle for Life |
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Page 31
... families . The same remark holds good in regard to the fruit of the several varieties of the plum , and still more strongly with the melon , as well as in many other analogous cases . To sum up on the origin of our domestic races of ...
... families . The same remark holds good in regard to the fruit of the several varieties of the plum , and still more strongly with the melon , as well as in many other analogous cases . To sum up on the origin of our domestic races of ...
Page 95
... families . Thus it is , as I believe , that two or more genera are produced by descent with modification , from two or more species of the same genus . And the two or more parent - species are supposed to be descended from some one ...
... families . Thus it is , as I believe , that two or more genera are produced by descent with modification , from two or more species of the same genus . And the two or more parent - species are supposed to be descended from some one ...
Page 96
... families , or orders , according to the amount of divergent modifica- tion supposed to be represented in the diagram . And the two new families , or orders , are descended from two species of the original genus , and these are supposed ...
... families , or orders , according to the amount of divergent modifica- tion supposed to be represented in the diagram . And the two new families , or orders , are descended from two species of the original genus , and these are supposed ...
Page 97
... families , orders , and classes , as at the present time . On the Degree to which Organisation tends to advance . Natural Selection acts exclusively by the preservation and accu- mulation of variations , which are beneficial under the ...
... families , orders , and classes , as at the present time . On the Degree to which Organisation tends to advance . Natural Selection acts exclusively by the preservation and accu- mulation of variations , which are beneficial under the ...
Page 104
... families , families , orders , sub - classes , and classes . The several subordinate groups in any class cannot be ranked in a single file , but seem clustered round points , and these round other points , and so on in almost endless ...
... families , families , orders , sub - classes , and classes . The several subordinate groups in any class cannot be ranked in a single file , but seem clustered round points , and these round other points , and so on in almost endless ...
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Common terms and phrases
adapted admit affinities allied species America analogous ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formations formerly forms fossil Fritz Müller genera genus geological Glacial period gradations greater number groups of species habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ larvæ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked reproductive resemblance rudimentary seeds sexual selection slight South America stamens sterility structure struggle successive supposed theory tion variability variations varieties vary whilst whole wings young