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 v
... Varieties Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons , their Differences and Origin - Principle of Selection anciently followed , its Effects ...
... Varieties Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons , their Differences and Origin - Principle of Selection anciently followed , its Effects ...
Page viii
... varieties at the present - On the nature of extinct intermediate varieties ; on their number On the vast lapse of time , as inferred from the rate of deposi- tion and of denudation - On the poorness of our palæontological collections On ...
... varieties at the present - On the nature of extinct intermediate varieties ; on their number On the vast lapse of time , as inferred from the rate of deposi- tion and of denudation - On the poorness of our palæontological collections On ...
Page 7
... Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons , their Differences and Origin - Principle of Selection anciently followed , its Effects ...
... Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons , their Differences and Origin - Principle of Selection anciently followed , its Effects ...
Page 12
... varieties and sub- varieties differ slightly from each other . The whole organisation seems to have become plastic , and tends to depart in some small degree from that of the parental type .. Any variation which is not inherited is ...
... varieties and sub- varieties differ slightly from each other . The whole organisation seems to have become plastic , and tends to depart in some small degree from that of the parental type .. Any variation which is not inherited is ...
Page 15
... varieties certainly do occasionally revert in some of their characters to ancestral forms , it seems to me not improbable , that if we could succeed in naturalising , or were to cultivate , during many genera- tions , the several races ...
... varieties certainly do occasionally revert in some of their characters to ancestral forms , it seems to me not improbable , that if we could succeed in naturalising , or were to cultivate , during many genera- tions , the several races ...
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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