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 viii
... living species - On the state of development of ancient forms On the succession of the same types within the same areas Summary of preceding and present chapters 312-345 CHAPTER XI . GEOGRAPHICAL DISTRIBUTION . -- Present distribution ...
... living species - On the state of development of ancient forms On the succession of the same types within the same areas Summary of preceding and present chapters 312-345 CHAPTER XI . GEOGRAPHICAL DISTRIBUTION . -- Present distribution ...
Page 8
... living long under not very close con- finement in their native country ! This is generally attributed to vitiated instincts ; but how many cultivated plants display the utmost vigour , and yet rarely or never seed ! In some few such ...
... living long under not very close con- finement in their native country ! This is generally attributed to vitiated instincts ; but how many cultivated plants display the utmost vigour , and yet rarely or never seed ! In some few such ...
Page 94
... living and leaving descendants . Its descendants would probably inherit a tendency to a similar slight deviation of structure . The tubes of the corollas of the common red and incarnate clovers ( Trifolium pratense and in- carnatum ) do ...
... living and leaving descendants . Its descendants would probably inherit a tendency to a similar slight deviation of structure . The tubes of the corollas of the common red and incarnate clovers ( Trifolium pratense and in- carnatum ) do ...
Page 107
... living fossils ; they have endured to the present day , from having inhabited a confined area , and from having thus been exposed to less severe competition . To sum up the circumstances favourable and un- favourable to natural ...
... living fossils ; they have endured to the present day , from having inhabited a confined area , and from having thus been exposed to less severe competition . To sum up the circumstances favourable and un- favourable to natural ...
Page 113
... living on the same piece of ground . And we well know that each species and each variety of grass is annually sowing almost countless seeds ; and thus , as it may be said , is striving its utmost to increase its numbers . Con- sequently ...
... living on the same piece of ground . And we well know that each species and each variety of grass is annually sowing almost countless seeds ; and thus , as it may be said , is striving its utmost to increase its numbers . Con- sequently ...
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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