The Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life |
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Page xviii
... successive periods , and then re - stocked ; and he gives as an alternative , that new forms may be generated " without the presence of any mould or germ of former aggregates . " I am not sure that I understand some passages ; but it ...
... successive periods , and then re - stocked ; and he gives as an alternative , that new forms may be generated " without the presence of any mould or germ of former aggregates . " I am not sure that I understand some passages ; but it ...
Page 4
... successive slight variations . I will then pass on to the 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 ...
... successive slight variations . I will then pass on to the 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 ...
Page 33
... successive generations . May not those naturalists who , knowing far less of the laws of inheritance than does the breeder , and knowing no more than he does of the intermediate links in the long lines of descent , yet admit that many ...
... successive generations . May not those naturalists who , knowing far less of the laws of inheritance than does the breeder , and knowing no more than he does of the intermediate links in the long lines of descent , yet admit that many ...
Page 35
... successive varia- · tions ; man adds them up in certain directions useful to him . In this sense he may be said to have made for himself useful breeds . The great power of this principle of selection is not hypothetical . It is certain ...
... successive varia- · tions ; man adds them up in certain directions useful to him . In this sense he may be said to have made for himself useful breeds . The great power of this principle of selection is not hypothetical . It is certain ...
Page 36
... successive generations , of differences absolutely inappreciable by an uneducated eye - differences which I for one have vainly attempted to appreciate . Not one man in a thousand has accuracy of eye and judg- ment sufficient to become ...
... successive generations , of differences absolutely inappreciable by an uneducated eye - differences which I for one have vainly attempted to appreciate . Not one man in a thousand has accuracy of eye and judg- ment sufficient to become ...
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Common terms and phrases
adapted affinities allied species America ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour common continent crossed crustaceans degree developed difficulty distinct species domestic doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formation forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellę larvę less living males mammals manner marsupials migration modified descendants natural selection naturalists nearly nest occasionally offspring organisation organs parent peculiar perfect pigeon pistil pollen present principle probably produced progenitor quadrupeds ranked remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive supposed swimbladder tend theory tion trees variability variations varieties vary whilst whole wings young