The Origin of Species by Means of Natural Selection,: Or the Preservation of Favoured Races in the Struggle for LifeJohn Murray, Albemarle Street., 1891 - Всего страниц: 432 |
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Стр. xvi
... peculiar characters ; " but farther on ( p . 18 ) he adds , " except the original types or ancestors of the genus . " " " In 1843-44 Professor Haldeman ( ' Boston Journal of Nat . Hist . U. States , ' vol . iv . p . 468 ) has ably given ...
... peculiar characters ; " but farther on ( p . 18 ) he adds , " except the original types or ancestors of the genus . " " " In 1843-44 Professor Haldeman ( ' Boston Journal of Nat . Hist . U. States , ' vol . iv . p . 468 ) has ably given ...
Стр. xvii
... peculiar habits of life . The work , from its powerful and brilliant style , though displaying in the earlier editions little accurate knowledge and a great want of scientific caution , imme- diately had a very wide circulation . In my ...
... peculiar habits of life . The work , from its powerful and brilliant style , though displaying in the earlier editions little accurate knowledge and a great want of scientific caution , imme- diately had a very wide circulation . In my ...
Стр. 14
... peculiar to Great Britain ! When we bear in mind that Britain has now not one peculiar mammal , and France but few distinct from those of Germany , and so with Hungary , Spain , etc. , but that each of these kingdoms possesses several ...
... peculiar to Great Britain ! When we bear in mind that Britain has now not one peculiar mammal , and France but few distinct from those of Germany , and so with Hungary , Spain , etc. , but that each of these kingdoms possesses several ...
Стр. 35
... peculiar to Great Britain . A wide distance between the homes of two doubtful forms leads many naturalists to rank them as distinct species ; but what distance , it has been well asked , will suffice ; if that between America and Europe ...
... peculiar to Great Britain . A wide distance between the homes of two doubtful forms leads many naturalists to rank them as distinct species ; but what distance , it has been well asked , will suffice ; if that between America and Europe ...
Стр. 53
... peculiar structure , never sets a seed . Nearly all our orchidaceous plants absolutely require the visits of insects to remove their pollen - masses and thus to fertilise them . I find from experiments that humble - bees are almost ...
... peculiar structure , never sets a seed . Nearly all our orchidaceous plants absolutely require the visits of insects to remove their pollen - masses and thus to fertilise them . I find from experiments that humble - bees are almost ...
Другие издания - Просмотреть все
The Origin of Species by Means of Natural Selection: Or, The ..., Том 1 Charles Darwin Полный просмотр - 1889 |
The Origin of Species by Means of Natural Selection: Or, the ..., Том 1 Charles Darwin Полный просмотр - 1898 |
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accumulated adapted admit affinities allied species America analogous ancient appear beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species domestic animals doubt effects eggs embryo existing extinct extremely facts favourable female fertilised fertility flowers formation formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number habits Hence hybrids important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ larvæ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive supposed tend theory tion variability variations varieties vary whilst whole wings young