On the Origin of Species by Means of Natural Selection |
From inside the book
Results 1-5 of 94
Page x
... Natural Selection is promul- gated . In June , 1859 , Professor Huxley gave a lecture be- fore the Royal Institution on the Persistent Types of Ani- mal Life . Referring to such cases , he remarks : " It is difficult to comprehend the ...
... Natural Selection is promul- gated . In June , 1859 , Professor Huxley gave a lecture be- fore the Royal Institution on the Persistent Types of Ani- mal Life . Referring to such cases , he remarks : " It is difficult to comprehend the ...
Page 5
... natural selection - The term used in a wide sense - Geometrical powers of increase - Rapid increase of naturalised animals and plants - Nature of the checks to increase - Competition universal - Effects of climate - Protection from the ...
... natural selection - The term used in a wide sense - Geometrical powers of increase - Rapid increase of naturalised animals and plants - Nature of the checks to increase - Competition universal - Effects of climate - Protection from the ...
Page 6
... Natural Selection , namely , intercross- ing , isolation , number of individuals - Slow action - Extinction caused by Natural Selection - Divergence of Character , related to the diversity of inhabitants of any small area , and to ...
... Natural Selection , namely , intercross- ing , isolation , number of individuals - Slow action - Extinction caused by Natural Selection - Divergence of Character , related to the diversity of inhabitants of any small area , and to ...
Page 12
... Natural Selection will be treated at some length in the fourth chapter ; and we shall then see how Natural Selection almost inevitably causes much Extinction of the less improved forms of life , and induces what I have called Divergence ...
... Natural Selection will be treated at some length in the fourth chapter ; and we shall then see how Natural Selection almost inevitably causes much Extinction of the less improved forms of life , and induces what I have called Divergence ...
Page 21
... nature the con- ditions of life do change , variations and reversions of char- acter probably do occur ; but natural selection , as will hereafter be explained , will determine how far the new characters thus arising shall be preserved ...
... nature the con- ditions of life do change , variations and reversions of char- acter probably do occur ; but natural selection , as will hereafter be explained , will determine how far the new characters thus arising shall be preserved ...
Other editions - View all
Common terms and phrases
accumulated adapted affinities allied species America amount ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living look male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation perfect pigeons pistil plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rudimentary seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder tend theory tion trees variability variation varieties vary whole widely