On the Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life1859 |
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Page vii
... widely different from those of their allies - Organs of extreme perfection - Means of transition - Cases of difficulty- Natura non facit saltum - Organs of small importance - Organs not in all cases absolutely perfect - The law of Unity ...
... widely different from those of their allies - Organs of extreme perfection - Means of transition - Cases of difficulty- Natura non facit saltum - Organs of small importance - Organs not in all cases absolutely perfect - The law of Unity ...
Page 6
... widely and is very numerous , and why another allied species has a narrow range and is rare ? Yet these relations are of the highest importance , for they determine the present welfare , and , as I believe , the future success and ...
... widely and is very numerous , and why another allied species has a narrow range and is rare ? Yet these relations are of the highest importance , for they determine the present welfare , and , as I believe , the future success and ...
Page 16
... widely in determining what characters are of generic value ; all such valuations being at present empirical . Moreover ,. on the view of the origin of genera which I shall pre- sently give , we have no right to expect often to meet with ...
... widely in determining what characters are of generic value ; all such valuations being at present empirical . Moreover ,. on the view of the origin of genera which I shall pre- sently give , we have no right to expect often to meet with ...
Page 40
... widely , and will get recognised as something distinct and valu- able , and will then probably first receive a provincial name . In semi - civilised countries , with little free com- munication , the spreading and knowledge of any new ...
... widely , and will get recognised as something distinct and valu- able , and will then probably first receive a provincial name . In semi - civilised countries , with little free com- munication , the spreading and knowledge of any new ...
Page 51
... widely extended , he will in the end generally be enabled to make up his own mind which to call varieties and which species ; but he will succeed in this at the expense of admitting much variation , and the truth of this admission will ...
... widely extended , he will in the end generally be enabled to make up his own mind which to call varieties and which species ; but he will succeed in this at the expense of admitting much variation , and the truth of this admission will ...
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Common terms and phrases
adapted affinities allied species America amount analogous ancient animals become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable Fcap fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring perfect pigeons plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble Second Edition seeds sexual selection Silurian slight South America sterility structure struggle successive suppose theory Third Edition tion variability variation varieties vary Vols whole widely Woodcuts