The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life, Volume 1 |
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Page x
... reasons given for disbelieving in great and sudden modifi- cations . Gradations of character , often accom- panied by changes of function , are likewise here incidentally considered . are The statement with respect to young cuckoos ...
... reasons given for disbelieving in great and sudden modifi- cations . Gradations of character , often accom- panied by changes of function , are likewise here incidentally considered . are The statement with respect to young cuckoos ...
Page xxii
... reason for believing that specific characters " sont fixés , pour chaque espèce , tant qu'elle se perpétue au milieu des mêmes circonstances : ils se modifient , si les circonstances ambiantes viennent à changer . " résumé , l ...
... reason for believing that specific characters " sont fixés , pour chaque espèce , tant qu'elle se perpétue au milieu des mêmes circonstances : ils se modifient , si les circonstances ambiantes viennent à changer . " résumé , l ...
Page 16
... reason why a peculiarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which it first appeared in the parent . I believe this rule to be of the highest importance in ...
... reason why a peculiarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which it first appeared in the parent . I believe this rule to be of the highest importance in ...
Page 30
... reasons , namely , —the improba- bility of man having formerly made seven or eight supposed species of pigeons to breed freely under domestication ; these supposed species being quite unknown in a wild state , and their not having ...
... reasons , namely , —the improba- bility of man having formerly made seven or eight supposed species of pigeons to breed freely under domestication ; these supposed species being quite unknown in a wild state , and their not having ...
Page 40
... reason to believe that King Charles's spaniel has been unconsciously modified to a large extent since the time of that monarch . Some highly competent authorities are convinced that the setter is directly derived from the spaniel , and ...
... reason to believe that King Charles's spaniel has been unconsciously modified to a large extent since the time of that monarch . Some highly competent authorities are convinced that the setter is directly derived from the spaniel , and ...
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Common terms and phrases
adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse divergence domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young