Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1890 - Всего страниц: 351 |
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Стр. 8
... wild plant were self- fertilized , and others were crossed with pollen from another plant growing within two or three feet distance . The crossed and self - fertilized plants raised from the seeds thus obtained produced flower - stems ...
... wild plant were self- fertilized , and others were crossed with pollen from another plant growing within two or three feet distance . The crossed and self - fertilized plants raised from the seeds thus obtained produced flower - stems ...
Стр. 48
... the bones of the wing weigh less and the bones of the leg more , in proportion to the whole skeleton , than do the same bones in the wild - duck ;. 48 DARWINISM STATED BY DARWIN HIMSELF . Inherited Effect of Changed Habits.
... the bones of the wing weigh less and the bones of the leg more , in proportion to the whole skeleton , than do the same bones in the wild - duck ;. 48 DARWINISM STATED BY DARWIN HIMSELF . Inherited Effect of Changed Habits.
Стр. 49
... wild - duck ; and this change may be safely attributed to the domestic duck flying much less , and walking more , than its wild parents . The great and inherited development of the udders in cows and goats in countries where they are ...
... wild - duck ; and this change may be safely attributed to the domestic duck flying much less , and walking more , than its wild parents . The great and inherited development of the udders in cows and goats in countries where they are ...
Стр. 52
... wild species . The argument mainly relied on by those who believe in the multiple origin of our domestic animals is , that we find in the most ancient times , on the monuments of Egypt , and in the lake - habitations of Switzerland ...
... wild species . The argument mainly relied on by those who believe in the multiple origin of our domestic animals is , that we find in the most ancient times , on the monuments of Egypt , and in the lake - habitations of Switzerland ...
Стр. 54
... wild or feral , though the dovecot - pigeon , which is the rock - pigeon in a very slightly altered state , has become feral in several places . Again , all recent experience shows that it is diffi- cult to get wild animals to breed ...
... wild or feral , though the dovecot - pigeon , which is the rock - pigeon in a very slightly altered state , has become feral in several places . Again , all recent experience shows that it is diffi- cult to get wild animals to breed ...
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Часто встречающиеся слова и выражения
acid acquired action adapted admit allied animals apes appear become believe birds body breeds cause character climate closely compared cotyledons crossed degree descended developed distinct species disuse domestic doubt early effects eggs embryo existence extinct eyes fact female fertilization forms gemmules genera genus geotropism Glacial habits hairs hermaphrodites highly horses increase individuals inhabitants inherited insects instance instincts islands kinds labellum lancelet larvæ leaves less living lower animals Malaxis paludosa males mammals manner mental millimetre modified monkeys movements muscles natural selection naturalists observed occasionally offspring organs Origin of Species ovules papillæ parent peculiar period pigeon plants points pollen pollinium possess present prey probably produced progenitors Quadrumana quadrupeds races radicles remarkable resemble rudimentary savages seedlings seeds seems sexes sexual elements sexual selection slight structure suppose surface tend tendency tion transmitted utricle variability variations varieties various vertebræ whole wild worms young