On the Origin of the Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page v
... Variability - Effects of Habit - Correlated Variation Inheritance Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons ...
... Variability - Effects of Habit - Correlated Variation Inheritance Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons ...
Page xii
... Variability . Limit of variation under domestication . On the great importance of individual differences , and on the unimportance of single variations . 120 Wagner Moritz on the importance of isolation in the formation of species . 146 ...
... Variability . Limit of variation under domestication . On the great importance of individual differences , and on the unimportance of single variations . 120 Wagner Moritz on the importance of isolation in the formation of species . 146 ...
Page 4
... variability of species in a state of nature ; but I shall , unfortunately , be compelled to treat this subject far too briefly , as it can be treated properly only by giving long catalogues of facts . We shall , however , be enabled to ...
... variability of species in a state of nature ; but I shall , unfortunately , be compelled to treat this subject far too briefly , as it can be treated properly only by giving long catalogues of facts . We shall , however , be enabled to ...
Page 6
... that species . Further- more , I am convinced that Natural Selection has been the most important but not the exclusive means of modification . CHAPTER I. VARIATION UNDER DOMESTICATION . - Causes of Variability 6 INTRODUCTION .
... that species . Further- more , I am convinced that Natural Selection has been the most important but not the exclusive means of modification . CHAPTER I. VARIATION UNDER DOMESTICATION . - Causes of Variability 6 INTRODUCTION .
Page 7
... Variability — Effects of Habit — Correlated Variation - Inheritance - Character of Domestic Varieties Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons ...
... Variability — Effects of Habit — Correlated Variation - Inheritance - Character of Domestic Varieties Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons ...
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Common terms and phrases
accumulated adapted admit affinities allied species America analogous ancient appear archipelago Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common continuous crossed crustaceans degree developed difficulty distinct species divergence doubt eggs embryo existing exterminated extinct extremely facts favourable females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological Glacial period gradations greater number groups of species habits Hence hermaphrodites hive-bee hybrids important individuals inhabitants inherited insects instance instincts intercrossing larvæ less living males mammals manner migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation parent perfect pigeons pistil pollen present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary organs seeds sexual sexual selection Silurian slight South America stamens sterility structure struggle successive suppose theory tion variability variations vary whilst whole