On the Origin of the Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page viii
... successive appearance of new species - On their different rates of change - Species once lost do not reappear - Groups of species follow the same general rules in their appear- ance and disappearance as do single species - On Extinction ...
... successive appearance of new species - On their different rates of change - Species once lost do not reappear - Groups of species follow the same general rules in their appear- ance and disappearance as do single species - On Extinction ...
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 variations ; 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 that ...
... successive variations ; 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 that ...
Page 34
... successive generations , of differences absolutely inap- preciable 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 judgment sufficient to become ...
... successive generations , of differences absolutely inap- preciable 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 judgment sufficient to become ...
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Common terms and phrases
accumulated adapted affinities allied species America ancient appear Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt Edition eggs embryo existing exterminated extinct extremely facts favourable females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ less living males mammals manner migration modified descendants natural selection naturalists nearly nest occur oceanic islands offspring organisation parent perfect pigeons pistil pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble seeds sexual sexual selection Silurian slight South America stamens sterility structure struggle successive suppose theory tion variability variations varieties vary vols whole widely