The Origin of Species by Means of Natural Selection,: Or the Preservation of Favoured Races in the Struggle for LifeJohn Murray, Albemarle Street., 1891 - 432 páginas |
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Página xii
... given for disbelieving in great and sudden modifications . Gradations of character , often accompanied by changes of function , are likewise here incidentally considered . The statement with respect to young cuckoos ejecting their ...
... given for disbelieving in great and sudden modifications . Gradations of character , often accompanied by changes of function , are likewise here incidentally considered . The statement with respect to young cuckoos ejecting their ...
Página xvi
... given in his 55th Lecture , published in the ' Lancet ' in 1834 . In 1831 Mr. Patrick Matthew published his work on ' Naval Timber and Arboriculture , ' in which he gives precisely the same view on the origin of species as that ...
... given in his 55th Lecture , published in the ' Lancet ' in 1834 . In 1831 Mr. Patrick Matthew published his work on ' Naval Timber and Arboriculture , ' in which he gives precisely the same view on the origin of species as that ...
Página 8
... given in Isidore Geoffroy St. Hilaire's great work on this subject . Breeders believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus cats which are entirely ...
... given in Isidore Geoffroy St. Hilaire's great work on this subject . Breeders believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus cats which are entirely ...
Página 13
... given rise to distinct races . Since the discovery of flint tools in the superficial formations of many parts of the world , all geologists believe that barbarian man existed at an enormously remote period ; and we know that at the ...
... given rise to distinct races . Since the discovery of flint tools in the superficial formations of many parts of the world , all geologists believe that barbarian man existed at an enormously remote period ; and we know that at the ...
Página 19
... given in a bill of fare in the previous dynasty . In the time of the Romans , as we hear from Pliny , immense prices were given for pigeons ; " nay , they are come to this pass , that they can reckon up their pedigree and race ...
... given in a bill of fare in the previous dynasty . In the time of the Romans , as we hear from Pliny , immense prices were given for pigeons ; " nay , they are come to this pass , that they can reckon up their pedigree and race ...
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Términos y frases comunes
accumulated adapted admit affinities allied species America analogous ancient appear beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species domestic animals doubt effects eggs embryo existing extinct extremely facts favourable female fertilised fertility flowers formation formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number habits Hence hybrids important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ larvæ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive supposed tend theory tion variability variations varieties vary whilst whole wings young