The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life, Volume 1 |
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Page v
... VARIATION UNDER DOMESTICATION . - Causes of Variability - Effects of Habit and the use or disuse of Parts Correlated Variation Inheritance - Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species ...
... VARIATION UNDER DOMESTICATION . - Causes of Variability - Effects of Habit and the use or disuse of Parts Correlated Variation Inheritance - Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species ...
Page 4
... variation under domestication , afforded the best and safest clue . I may venture to express my conviction of the high ... variations . I will then pass on to the variability of species in a state of nature ; but I shall , unfortunately ...
... variation under domestication , afforded the best and safest clue . I may venture to express my conviction of the high ... variations . I will then pass on to the variability of species in a state of nature ; but I shall , unfortunately ...
Page 7
... VARIATION UNDER DOMESTICATION . Causes of Variability - Effects of Habit and the use or disuse of Parts - Correlated Variation - Inheritance - Character of Do- mestic Varieties - Difficulty of distinguishing between Varieties and ...
... VARIATION UNDER DOMESTICATION . Causes of Variability - Effects of Habit and the use or disuse of Parts - Correlated Variation - Inheritance - Character of Do- mestic Varieties - Difficulty of distinguishing between Varieties and ...
Page 8
... variation ; and that , when the organisation has once begun to vary , it generally continues varying for many generations ... variations arise under conditions which appear to be nearly uniform . The effects on the offspring are either ...
... variation ; and that , when the organisation has once begun to vary , it generally continues varying for many generations ... variations arise under conditions which appear to be nearly uniform . The effects on the offspring are either ...
Page 9
... variations which we see in the plumage of our fowls must have had some efficient cause ; and if the same cause were to act uniformly during a long series of generations on many individuals , all probably would be modified in the same ...
... variations which we see in the plumage of our fowls must have had some efficient cause ; and if the same cause were to act uniformly during a long series of generations on many individuals , all probably would be modified in the same ...
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Common terms and phrases
adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse divergence domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young