The Variation of Animals and Plants Under Domestication, Volumen1D. Appleton, 1890 - 495 páginas |
Otras ediciones - Ver todas
The Variation of Animals and Plants Under Domestication, Volumen1 Charles Darwin Vista completa - 1868 |
The Variation of Animals and Plants Under Domestication, Volumen1 Charles Darwin Vista completa - 1882 |
The Variation of Animals and Plants Under Domestication, Volumen1 Charles Darwin Vista completa - 1875 |
Términos y frases comunes
aboriginal animals appearance bankiva Barbs beak Bechstein birds blue Blyth body bones bud-variation buds Carriers cattle cervical vertebra character Cochins colour common crest crossed cultivated descended distinct species dogs domestic breeds domestic pigeon domestic rabbits domestic races duck ears English Pouter fact fanciers Fantails feathers female feral flowers frontal bones fruit Gardener's Chron Gardener's Chronicle grafted habits Hist horses Hort hybrids inches India inherited instance Islands kinds latter legs length livia lumbar vertebræ maize male mammæ modified namely natural natural selection nearly nectarine niata observed parent parent-form peach peculiar pigeons pigs plants plumage pollen Porto Santo Poultry Pouters produced propagated remarkable resemble reversion rock-pigeon Runts seed seedlings seen selection shape Short-faced Tumbler skin skull specimens sternum stripes sub-breeds Sub-race sub-varieties tail tail-feathers Tegetmeier trees tubers Turbits variable variation varieties vary vertebræ whilst wild rabbit wild rock-pigeon wings Zoolog
Pasajes populares
Página 464 - SOUND: a Course of Eight Lectures delivered at the Royal Institution of Great Britain.
Página 6 - It has been said that I speak of natural selection as an active power or Deity; but who objects to an author speaking of the attraction of gravity as ruling the movements of the planets?
Página 7 - So again it is difficult to avoid personifying the word Nature ; but I mean by Nature, only the aggregate action and product of many natural laws, and by laws the sequence of events as ascertained by us.
Página 463 - GRAY. 2 vols. Illustrated. Cloth, $5.00. INSECTIVOROUS PLANTS. 12mo. Cloth, $2.00. MOVEMENTS AND HABITS OF CLIMBING PLANTS. With Illustrations. 12mo. Cloth, $1.25. THE VARIOUS CONTRIVANCES BY WHICH ORCHIDS ARE FERTILIZED BY INSECTS. Revised edition, with Illustrations. 12mo. Cloth, $1.75.
Página 464 - ELECTRICITY, 1875-'76. 12mo. Cloth, $1.00. HOURS OF EXERCISE IN THE ALPS. With Illustrations. 12mo. Cloth, $2.00. FARADAY AS A DISCOVERER. A Memoir. 12mo. Cloth, $1.00. CONTRIBUTIONS TO MOLECULAR PHYSICS in the Domain of Radiant Heat. $5.00. SIX LECTURES ON LIGHT. Delivered in America in 1872'73. With an Appendix and numerous Illustrations. Cloth, $1.50.
Página 3 - Man, therefore, may be said to have been trying an experiment on a gigantic scale ; and it is an experiment which nature during the long lapse of time has incessantly tried.
Página 9 - In scientific investigations it is permitted to invent any hypothesis, and if it explains various large and independent classes of facts it rises to the rank of a well-grounded theory.
Página 28 - alter strangely ; their ears grow long and stiff like those of foxes, to which colour they also incline, so that in three or four years, they degenerate into very ugly creatures ; and in three or four broods their barking turns into a howl.