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. viii
... GEOLOGICAL RECORD . On the absence of intermediate varieties at the present day - On the nature of extinct intermediate varieties ; on their number - On the lapse of time ... period - Alternate Glacial periods in the north and south 296 ...
... GEOLOGICAL RECORD . On the absence of intermediate varieties at the present day - On the nature of extinct intermediate varieties ; on their number - On the lapse of time ... period - Alternate Glacial periods in the north and south 296 ...
Стр. xvi
... periods , and then re - stocked ; and he gives as an alternative , that new forms may be generated " without the ... geologist and naturalist , Von Buch , in his excel- lent ' Description Physique des Isles Canaries ' ( 1836 , p . 147 ) ...
... periods , and then re - stocked ; and he gives as an alternative , that new forms may be generated " without the ... geologist and naturalist , Von Buch , in his excel- lent ' Description Physique des Isles Canaries ' ( 1836 , p . 147 ) ...
Стр. xx
... earth . He infers that many species have kept true for long periods , whereas a few have become modified . The distinction of species he explains by the destruction of inter- mediate graduated forms . " Thus living plants and animals ...
... earth . He infers that many species have kept true for long periods , whereas a few have become modified . The distinction of species he explains by the destruction of inter- mediate graduated forms . " Thus living plants and animals ...
Стр. 1
... geological relations of the present to the past inhabitants of that continent . These facts , as will be seen in the ... years ' work I allowed myself to speculate on the subject , and drew up some short notes ; these I enlarged in 1844 into ...
... geological relations of the present to the past inhabitants of that continent . These facts , as will be seen in the ... years ' work I allowed myself to speculate on the subject , and drew up some short notes ; these I enlarged in 1844 into ...
Стр. 13
... period than has hitherto been supposed . The lake - inhabitants of ... period of less advanced civilisa- tion , during which the domesticated animals , kept ... geologists believe that barbarian man existed at an enormously remote period ...
... period than has hitherto been supposed . The lake - inhabitants of ... period of less advanced civilisa- tion , during which the domesticated animals , kept ... geologists believe that barbarian man existed at an enormously remote period ...
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