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 xviii
... nearly depopulated at 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 ...
... nearly depopulated at 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 ...
Page 1
... nearly finished ; but as it will take me two or three more years to complete it , and as my health is far from strong , I have been urged to publish this Abstract . I have more especially been induced B to do this , as Mr. Wallace , who ...
... nearly finished ; but as it will take me two or three more years to complete it , and as my health is far from strong , I have been urged to publish this Abstract . I have more especially been induced B to do this , as Mr. Wallace , who ...
Page 8
... nearly uniform . The effects on the offspring are either definite or in- definite . They may be considered as definite when all or nearly all the offspring of individuals exposed to certain conditions during several generations are modi ...
... nearly uniform . The effects on the offspring are either definite or in- definite . They may be considered as definite when all or nearly all the offspring of individuals exposed to certain conditions during several generations are modi ...
Page 9
... nearly the same food , deviations of structure so strongly pronounced as to deserve to be called monstrosities arise ; but mon- strosities cannot be separated by any distinct line from slighter variations . All such changes of structure ...
... nearly the same food , deviations of structure so strongly pronounced as to deserve to be called monstrosities arise ; but mon- strosities cannot be separated by any distinct line from slighter variations . All such changes of structure ...
Page 11
... nearly the same variety — for instance , buds on peach - trees pro- ducing nectarines , and buds on common roses producing moss - roses - we clearly see that the nature of the con- ditions is of quite subordinate importance in ...
... nearly the same variety — for instance , buds on peach - trees pro- ducing nectarines , and buds on common roses producing moss - roses - we clearly see that the nature of the con- ditions is of quite subordinate importance in ...
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Common terms and phrases
accumulated adapted admit affinities allied species America analogous ancient appear archipelago Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common continuous crossed crustaceans degree developed difficulty distinct species divergence doubt 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 hive-bee hybrids important individuals inhabitants inherited insects instance instincts intercrossing larvæ less living males mammals manner migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation parent perfect pigeons pistil pollen present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary organs seeds sexual sexual selection Silurian slight South America stamens sterility structure struggle successive suppose theory tion variability variations vary whilst whole