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 16
... ranked by competent judges as the descendants of aboriginally distinct species , and by other competent judges as mere varieties . If any marked distinction existed between domestic races and species , this source of doubt could not so ...
... ranked by competent judges as the descendants of aboriginally distinct species , and by other competent judges as mere varieties . If any marked distinction existed between domestic races and species , this source of doubt could not so ...
Page 24
... ranked by him as well - defined species . Moreover , I do not believe that any ornithologist would place the English carrier , the short - faced tumbler , the runt , the barb , pouter , and fantail in the same genus ; more espe- cially ...
... ranked by him as well - defined species . Moreover , I do not believe that any ornithologist would place the English carrier , the short - faced tumbler , the runt , the barb , pouter , and fantail in the same genus ; more espe- cially ...
Page 38
... ranked at their first appearance as distinct varieties , and whether or not two or more species or races have become blended together by crossing , may plainly be recognised in the increased size and beauty which we now see in the va ...
... ranked at their first appearance as distinct varieties , and whether or not two or more species or races have become blended together by crossing , may plainly be recognised in the increased size and beauty which we now see in the va ...
Page 52
... ranked as a variety of another , not because the intermediate links have actually been found , but because analogy leads the observer to suppose either that they do now somewhere exist , or may formerly have existed ; and here a wide ...
... ranked as a variety of another , not because the intermediate links have actually been found , but because analogy leads the observer to suppose either that they do now somewhere exist , or may formerly have existed ; and here a wide ...
Page 53
... ranked as species by at least some com- petent judges . That varieties of this doubtful nature are far from uncommon cannot be disputed . Compare the several floras of Great Britain , of France , or of the United States , drawn up by ...
... ranked as species by at least some com- petent judges . That varieties of this doubtful nature are far from uncommon cannot be disputed . Compare the several floras of Great Britain , of France , or of the United States , drawn up by ...
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Common terms and phrases
adapted affinities allied species America analogous ancient appear archipelago become bees believe birds breeds cause cells characters climate closely allied colour common continued crossed crustaceans degree difficulty distinct species doubt Edition eggs embryo Europe existing exterminated extinct extremely facts favourable Fcap females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation parent perfect pigeons pistil plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary seeds Silurian slight South America stamens sterility structure struggle successive supposed theory tion variability variations varieties vary Vols whole widely Woodcuts