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 10
... never seed ! In some few cases it has been discovered that a very trifling change , such as a little more or less water at some particular period of growth , will determine whether or not a plant will produce seeds . I cannot here give ...
... never seed ! In some few cases it has been discovered that a very trifling change , such as a little more or less water at some particular period of growth , will determine whether or not a plant will produce seeds . I cannot here give ...
Page 29
... never heard of an instance in England ; and the mongrels were black , brown , and mottled . I also crossed a barb with a spot , which is a white bird with a red tail and red spot on the forehead , and which notoriously breeds very true ...
... never heard of an instance in England ; and the mongrels were black , brown , and mottled . I also crossed a barb with a spot , which is a white bird with a red tail and red spot on the forehead , and which notoriously breeds very true ...
Page 32
... never less than 20,000 pigeons were taken with the court . " The monarchs of Iran and Turan sent him some very rare birds ; " and , continues the courtly historian , " His Majesty by crossing the breeds , which method was never ...
... never less than 20,000 pigeons were taken with the court . " The monarchs of Iran and Turan sent him some very rare birds ; " and , continues the courtly historian , " His Majesty by crossing the breeds , which method was never ...
Page 33
... never met a pigeon , or poultry , or duck , or rabbit fancier , who was not fully convinced that each main breed was descended from a distinct species . Van Mons , in his treatise on pears and apples , shows how utterly he disbelieves ...
... never met a pigeon , or poultry , or duck , or rabbit fancier , who was not fully convinced that each main breed was descended from a distinct species . Van Mons , in his treatise on pears and apples , shows how utterly he disbelieves ...
Page 34
... so little quarrelsome , with ' everlasting layers " which never desire to sit , and with the bantam so small and elegant ; when we 66 compare the host of agricultural , culinary , orchard , 34 [ CHAP . I. SELECTION BY MAN .
... so little quarrelsome , with ' everlasting layers " which never desire to sit , and with the bantam so small and elegant ; when we 66 compare the host of agricultural , culinary , orchard , 34 [ CHAP . I. SELECTION BY MAN .
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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