The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for Life, Volumes 1-2D. Appleton, 1917 - Evolution |
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Page 202
... colour , with certain bars and other marks ; and when any breed assumes by simple variation a bluish tint , these bars and other marks invariably reappear ; but without any other change of form or character . When the oldest and truest ...
... colour , with certain bars and other marks ; and when any breed assumes by simple variation a bluish tint , these bars and other marks invariably reappear ; but without any other change of form or character . When the oldest and truest ...
Page 333
... colour to their own . The European species apparently manifests some tendency towards a similar instinct , but not rarely departs from it , as is shown by her laying her dull and pale - coloured eggs in the nest of the Hedge - warbler ...
... colour to their own . The European species apparently manifests some tendency towards a similar instinct , but not rarely departs from it , as is shown by her laying her dull and pale - coloured eggs in the nest of the Hedge - warbler ...
Page 338
... colour of , i . 247 . Woodward , Mr. , on the duration of specific forms , ii . 66 . ? on Pyrgoma , ii . 81 . on the continuous succession of genera , ii . 93 . 121 . on the succession of types , ii . World , species changing simultane ...
... colour of , i . 247 . Woodward , Mr. , on the duration of specific forms , ii . 66 . ? on Pyrgoma , ii . 81 . on the continuous succession of genera , ii . 93 . 121 . on the succession of types , ii . World , species changing simultane ...
Contents
VARIATION UNDER DOMESTICATION | 7 |
CHAPTER II | 51 |
STRUGGLE FOR EXISTENCE | 66 |
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Common terms and phrases
adapted affinity allied species ancient animals appear Archipelago beak become believe belonging birds breeds Cambrian cause characters climate closely allied colour common continent crossed crustaceans degree developed difficulty distinct species domestic doubt eggs embryo Europe existing extinct extremely facts favourable fertilised fertility fish flowers formation formerly forms fossil Fritz Müller Gärtner genera genus geological geological period Glacial period gradations groups of species habits Hence hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly occur oceanic islands offspring organisation parent peculiar perfect pigeon pistil plants pollen present probably produced progenitor quadrupeds ranked reciprocal crosses remarked resemblance seeds Silurian slight South America stage stamens sterility structure successive suppose theory tion variability variations varieties vary whilst whole widely different wings