More Letters of Charles Darwin: A Record of His Work in a Series of Hitherto Unpublished Letters, Band 1D. Appleton, 1903 |
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A. R. Wallace admirable America animals appeared Arctic Asa Gray Athenæum Australia Azores believe birds botanical British character Charles Darwin Copley Medal copy crossed curious Darwin difficulty discussion domestic doubt edition essay facts Falconer favour feel flora flowers Forbes forms fossil gemmules genera genus Geological give given Glacial period glad hear Henslow hope Hugh Falconer Huxley's hybrids insects interesting islands J. D. Hooker Journal kind lecture Letter London look Lyell Madeira Natural History Natural Selection naturalists never observations opinion organs Origin of Species Owen pangenesis paper perhaps plants probably published reference remarks remember seeds seems Sir J. D. Hooker Sir Joseph Society sterility suppose sure T. H. Huxley tell thank theory thought tion tropical variability variation varieties Wallace whole wish write wrote Zealand
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Seite 381 - ... revised by Professor E. RAY LANKESTER, MA, FRS With Coloured Plates and Genealogical Trees of the various groups of both Plants and Animals. 2 vols. Third Edition. Post 8vo, 32*. The History of the Evolution of Man.
Seite 390 - In North America the black bear was seen by Hearne swimming for hours with widely open mouth, thus catching, like a whale, insects in the water. Even in so extreme a case as this, if the supply of insects were constant, and if better adapted competitors did not already exist in the country, I can see no difficulty in a race of bears being rendered, by natural selection, more and more aquatic in their structure and habits, with larger and larger mouths, till a creature was produced as monstrous as...
Seite 130 - I strongly insisted, in 1839 and 1845, on this "law of the succession of types," — on "this wonderful relationship in the same continent between the dead and the living." Professor Owen has subsequently extended the same generalisation to the mammals of the Old World. We see the same law in this author's restorations of the extinct and gigantic birds of New Zealand. We see it also in the birds of the caves of Brazil.
Seite 193 - About thirty years ago there was much talk that geologists ought only to observe and not theorise ; and I well remember some one saying that at this rate a man might as well go into a gravel-pit and count the pebbles and describe the colours. How odd it is that anyone should not see that all observation must be for or against some view if it is to be of any
Seite 118 - In 1858 he sent me a memoir on this subject, with a request that I would forward it to Sir Charles Lyell, who sent it to the Linnean Society, and it is published in the third volume of the Journal of that Society. Sir C. Lyell and Dr. Hooker, who both knew of my work — the latter having read my sketch of 1844 — honoured me by thinking it advisable to publish, with Mr. Wallace's excellent memoir, some brief extracts from my manuscripts.
Seite 334 - The elephant is reckoned to be the slowest breeder of all known animals, and I have taken some pains to estimate its probable minimum rate of natural increase: it will be under the mark to assume that it breeds...
Seite 266 - ... useful to any being. She can act on every internal organ, on every shade of constitutional difference, on the whole machinery of life. Man selects only for his own good : Nature only for that of the being which she tends.
Seite xix - Observations on the Parallel Roads of Glen Roy, and of other parts of Lochaber in Scotland, with an attempt to prove that they are of marine origin. Phil. Trans. 1839, pp. 39-82. On a remarkable Bar of Sandstone off Pernambuco, on the Coast of Brazil.
Seite 36 - ... occasionally flitted across my mind. On my return home in the autumn of 1836, I immediately began to prepare my journal for publication, and then saw how many facts indicated the common descent of species, so that in July, 1837, I opened a note-book to record any facts which might bear on the question. But I did not become convinced that species were mutable until. I think, two or three years had elapsed.
Seite 123 - All which seem to have been gradually produced during many generations by the perpetual endeavour of the creatures to supply the want of food, and to have been delivered to their posterity with constant improvement of them for the purposes required.