The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeJ. Murray, 1920 - 432ÆäÀÌÁö |
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xii ÆäÀÌÁö
... species , as always maintained in this work . The belief in the separate creation of species generally held by naturalists , until a recent period . 1 AN HISTORICAL SKETCH OF THE PROGRESS OF OPINION ON THE xii ADDITIONS AND CORRECTIONS .
... species , as always maintained in this work . The belief in the separate creation of species generally held by naturalists , until a recent period . 1 AN HISTORICAL SKETCH OF THE PROGRESS OF OPINION ON THE xii ADDITIONS AND CORRECTIONS .
xiii ÆäÀÌÁö
... naturalists , on the other hand , have believed that species undergo modification , and that the existing forms of ... naturalist first " * Aristotle , in his Physic©¡ Auscultationes ' ( lib . 2 , cap . 8 , s . 2 ) , after remarking that ...
... naturalists , on the other hand , have believed that species undergo modification , and that the existing forms of ... naturalist first " * Aristotle , in his Physic©¡ Auscultationes ' ( lib . 2 , cap . 8 , s . 2 ) , after remarking that ...
xiv ÆäÀÌÁö
... naturalists will be how , for instance , cattle got their horns , and not for what they are used . It is rather a singular instance of the manner in which similar views arise at about the same time , that Goethe in Germany , Dr. Darwin ...
... naturalists will be how , for instance , cattle got their horns , and not for what they are used . It is rather a singular instance of the manner in which similar views arise at about the same time , that Goethe in Germany , Dr. Darwin ...
xvi ÆäÀÌÁö
... naturalist , Von Buch , in his excel- lent ' Description Physique des Isles Canaries ' ( 1836 , p . 147 ) , clearly expresses his belief that varieties slowly become changed into permanent species , which are no longer capable of inter ...
... naturalist , Von Buch , in his excel- lent ' Description Physique des Isles Canaries ' ( 1836 , p . 147 ) , clearly expresses his belief that varieties slowly become changed into permanent species , which are no longer capable of inter ...
1 ÆäÀÌÁö
... naturalist , I was much struck with certain facts in the distribution of the organic beings in- habiting South America , and in the geological relations of the present to the past inhabitants of that continent . These facts , as will be ...
... naturalist , I was much struck with certain facts in the distribution of the organic beings in- habiting South America , and in the geological relations of the present to the past inhabitants of that continent . These facts , as will be ...
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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 fact 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 lamell©¡ larv©¡ less living male mammals manner marsupials migration modified descendants natural selection naturalists nearly nest occasionally 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