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 49
... 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 148
... 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 149
... families , or orders , according to the amount of divergent modification 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 to ...
... families , or orders , according to the amount of divergent modification 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 to ...
Page 151
... families , orders , and classes , as at the present time . On the Degree to which Organisation tends to advance . Natural Selection acts exclusively by the preserva- tion and accumulation of variations , which are benefi- cial 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 preserva- tion and accumulation of variations , which are benefi- cial under the ...
Page 162
... 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 end- less ...
... 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 end- less ...
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Common terms and phrases
adapted affinities allied species America ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour common continent crossed crustaceans degree developed difficulty distinct species domestic doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formation forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellę larvę less living males mammals manner marsupials migration modified descendants natural selection naturalists nearly nest occasionally offspring organisation organs parent peculiar perfect pigeon pistil pollen present principle probably produced progenitor quadrupeds ranked remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive supposed swimbladder tend theory tion trees variability variations varieties vary whilst whole wings young