On the Origin of Species by Means of Natural Selection: Or The Preservation of Favoured Races in the Struggle for Life |
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Page xv
... produced , chiefly by intercrossing , but likewise by variation , all our existing species . In 1826 Professor Grant , in the concluding paragraph in his well- known paper ( Edinburgh Philosophical Journal , ' vol . xiv . p . 283 ) on ...
... produced , chiefly by intercrossing , but likewise by variation , all our existing species . In 1826 Professor Grant , in the concluding paragraph in his well- known paper ( Edinburgh Philosophical Journal , ' vol . xiv . p . 283 ) on ...
Page xvi
... progresses by sudden leaps , but that the effects produced by the conditions of life are gradual . He argues with much force on general grounds that species are not immutable productions . But I cannot see xvi HISTORICAL SKETCH .
... progresses by sudden leaps , but that the effects produced by the conditions of life are gradual . He argues with much force on general grounds that species are not immutable productions . But I cannot see xvi HISTORICAL SKETCH .
Page xvii
... produced by descent with modification , than that they have been separately created : the author first pro- mulgated this opinion in 1831 . Professor Owen , in 1849 ( ' Nature of Limbs , ' p . 86 ) , wrote as follows : - " The ...
... produced by descent with modification , than that they have been separately created : the author first pro- mulgated this opinion in 1831 . Professor Owen , in 1849 ( ' Nature of Limbs , ' p . 86 ) , wrote as follows : - " The ...
Page xx
... produced . I may add , that of the thirty - four authors named in this Historical Sketch , who believe in the modification of species , or at least disbelieve in separate acts of creation , twenty - seven have written on special ...
... produced . I may add , that of the thirty - four authors named in this Historical Sketch , who believe in the modification of species , or at least disbelieve in separate acts of creation , twenty - seven have written on special ...
Page 9
... producing offspring not perfectly like their parents . Sterility has been said to be the bane of horticulture ; but on this view we owe variability to the same cause which produces sterility ; and variability is the source of all the ...
... producing offspring not perfectly like their parents . Sterility has been said to be the bane of horticulture ; but on this view we owe variability to the same cause which produces sterility ; and variability is the source of all the ...
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Common terms and phrases
adapted affinities allied species America analogous ancient appear archipelago become bees believe birds breeds cause cells characters climate closely allied colour common continued crossed crustaceans degree difficulty distinct species doubt Edition eggs embryo Europe existing exterminated extinct extremely facts favourable Fcap females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation parent perfect pigeons pistil plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary seeds Silurian slight South America stamens sterility structure struggle successive supposed theory tion variability variations varieties vary Vols whole widely Woodcuts