On the Origin of Species by Means of Natural Selection: Or The Preservation of Favoured Races in the Struggle for Life |
From inside the book
Results 1-5 of 59
Page vi
... compared with man's selection - its power on characters of trifling importance - its power at all ages and on both sexes - Sexual Selection - On the generality of inter- crosses between individuals of the same species - Circumstances ...
... compared with man's selection - its power on characters of trifling importance - its power at all ages and on both sexes - Sexual Selection - On the generality of inter- crosses between individuals of the same species - Circumstances ...
Page vii
... comparable with habits , but different in their origin- Instincts graduated - Aphides and ants- Instincts variable ... compared independently of their fertility- Summary .. 292-338 --- CHAPTER IX . ON THE IMPERFECTION OF THE GEOLOGICAL ...
... comparable with habits , but different in their origin- Instincts graduated - Aphides and ants- Instincts variable ... compared independently of their fertility- Summary .. 292-338 --- CHAPTER IX . ON THE IMPERFECTION OF THE GEOLOGICAL ...
Page xii
... compared with those during which they have remained unchanged . On the Eozoon of the Laurentian formation of Canada . On certain forms not having advanced in organisation since the remotest periods . On the number of seeds contained in ...
... compared with those during which they have remained unchanged . On the Eozoon of the Laurentian formation of Canada . On certain forms not having advanced in organisation since the remotest periods . On the number of seeds contained in ...
Page 16
... compared one with another , and more especially when compared with the species under nature to which they are nearest allied . With these exceptions ( and with that of the perfect fertility of varieties when crossed , —a subject ...
... compared one with another , and more especially when compared with the species under nature to which they are nearest allied . With these exceptions ( and with that of the perfect fertility of varieties when crossed , —a subject ...
Page 28
... compared with all other Columbidæ , though so like in most other respects to the rock - pigeon ; the blue colour and various black marks occasionally appearing in all the breeds , both when kept pure and when crossed ; the mongrel ...
... compared with all other Columbidæ , though so like in most other respects to the rock - pigeon ; the blue colour and various black marks occasionally appearing in all the breeds , both when kept pure and when crossed ; the mongrel ...
Other editions - View all
Common terms and phrases
adapted affinities allied species America analogous ancient appear archipelago become bees believe birds breeds cause cells characters climate closely allied colour common continued crossed crustaceans degree difficulty distinct species doubt Edition eggs embryo Europe existing exterminated extinct extremely facts favourable Fcap females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation parent perfect pigeons pistil plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary seeds Silurian slight South America stamens sterility structure struggle successive supposed theory tion variability variations varieties vary Vols whole widely Woodcuts