Search Results - The Complete Work of Charles Darwin Online

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

. But it is just the same with organic development. Darwin (or any other zoologist) could not deduce the actual course of evolution from general principles. Given an organism and its environment, he could not show that it must evolve into a more complex organism of a definite pre-determined type; knowing what it has evolved into, he could attempt to discover and assign the determining causes. General principles do not account for a particular sequence; they embody necessary conditions; but there

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

does not proceed in a right line, without the choice of diverging. Again and again, several roads are open to it, of which it chooses one—why? On Lamprecht's method, we may be able to assign the conditions which limit the psychical activity of men at a particular stage of evolution, but within those limits the individual has so many options, such a wide room for moving, that the definition of those conditions, the psychical diapasons, is only part of the explanation of the particular development

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

the succession of shapes which may be assumed by celestial bodies in the course of their evolution. I believe further that homologous conceptions are applicable in the consideration of the transmutations of the various forms of animal and of vegetable life and in other regions of thought. Even if some of my readers should think that what I shall say on this head is fanciful, yet at least the exposition will serve to illustrate the meaning to be attached to the laws of stability in the physical

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

evolution of matter becomes much more probable. The question of the nature and physical meaning of a corpuscle or electron remains for consideration. On the hypothesis of a universal luminiferous aether, Larmor has suggested a centre of aethereal strain a place where the continuity of the medium has been broken and cemented together again (to use a crude but effective image) without accurately fitting the parts, so that there is a residual strain all round the place1. Thus he explains in quasi

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

of internal atomic energy. We have stumbled on the transmutation dreamed by the alchemist, and discovered the process of a veritable evolution of matter. The transmutation theory of radio-activity was formulated by Rutherford1 and Soddy in 1903. By its light, all recent work on the subject has been guided; it has stood the supreme test of a hypothesis, and shown power to suggest new investigations and to co-ordinate and explain them, when carried out. We have summarised the evidence which led

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

Blumenbach, 86 Bodin, 536 Boltwood, B. B., 578, 579 Bonald, on war, 471 Bonnet, 7 Bonney, T. G., 368 Bonnier, G., 2353 Bopp, F., on language, 515, 516 BOUGL , C., on Darwinism and Sociology, 465-476 Bourdeau, 534 Bourget, P., 470 Boutroux, 454 Boveri, T., 1101, 1034 Brachiopods, history of, 198 Brassica, hybrids of, 99 Brassica Napus, 415 Broca, 131, 470, 522 Brock, on Kant, 61 Brown, Robert, 404, 407 Brugmann and Osthoff, 5273 Brugmann, 5273 Bruneti re, 472 Bruno, on Evolution, 5 Buch, von

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

Pfeffer, W., 22, 389-391, 394 Pfitzner, W., 103 Pflueger, 262 Phillips, 361, 362 Philosophy, influence of the conception of evolution on modern, 446-464 Phryniscus nigricans, 281 Phylogeny, embryology as a clue to, 173-176 —Palaeontological evidence on, 188, 189, 204-217 Physiology of plants, development of, 223 Piccard, on Geotropism, 395, 396 Pickering, spectroscopic observations by, 559 Piranga erythromelas, 297 Pisum sativum, 418 Pithecanthropus, 127-129, 131, 135 Pitheculites, 136 Planema

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

Spencer, H., on the transmission of acquired characters, 139 —on Weismann, 33, 140 —3, 14, 305, 461, 467, 482, 497 Sphingidae, variation in, 28 Spinoza, 142, 453 Sports, 69, 73, 181 Sprengel, C. K., 4, 403-405, 409, 420 Stability, principle of, 543-554 Stahl, 397 Standfuss, 62, 258 Stars, evolution of double, 543-546 Stellaria media, 421 Stephen, L., 461 Sterility in hybrids, 97-99 Sterne, C., 71 Stockard, his experiments on fish embryos, 255 STRASBURBER, E., on The Minute Structure of Cells

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A162 Book: Seward, A. C. ed. 1909. Darwin and modern science. Essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of The origin of species. Cambridge: Cambridge University Press. Text Image PDF

ontogeny, 175 —and Prichard, 16 —and Spencer, 33 —on the transmission of acquired characters, 89-91 —141, 258 Wells, W. C., and Natural Selection, 15, 342 Weston, S., on language, 514 WHETHAM, W. C. D., on The Evolution of Matter, 565-582 Whewell, 360, 362 White, G., 4 Wichmann, 314 Wieland, G. R., on fossil Cycads, 206-208 Wiesner, on Darwin's work on plant movements, 397 Williams, C. M., 461 Williamson, W. C., 210 Wilson, E. B., on cytology, 93, 94, 1102 —letter from Darwin to, 278, 279 Wolf, 531

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A241 Periodical contribution: Bryce, James. 1909. Personal Reminiscences of Charles Darwin and of the Reception of the "Origin of Species". Proceedings of the American Philosophical Society 48 (193) (September): iii-xiv. Text Image

Ladies and gentlemen, a few words may be said upon some of the general aspects of this subject, which will be dealt with more completely by the third of the speakers who is to address you to-night. When I was first invited to attend the meeting I was asked to say something regarding the influence of the Darwinian theory, and in particular to what is called the Doctrine of Evolution upon history and the political and economic sciences. I felt obliged to decline so great a task as that, partly

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A241 Periodical contribution: Bryce, James. 1909. Personal Reminiscences of Charles Darwin and of the Reception of the "Origin of Species". Proceedings of the American Philosophical Society 48 (193) (September): iii-xiv. Text Image

followed his researches and reflected on his conclusions. Coming particularly to what is called the doctrine of Evolution, let it be at once admitted that in the branch of history that belongs to primitive man, that considers the growth of our race in its very earliest stages, and the development of his moral ideas and social habits, some of Mr. Darwin's suggestions were striking and illumina [page] v

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A279 Pamphlet: Darwin, George and Francis Darwin eds. 1909. Darwin celebration, Cambridge, June, 1909. Speeches delivered at the banquet held on June 23rd. Cambridge: Cambridge Daily News. Text PDF

the whole tone of one's mind, and therefore that, when seeing a thing never seen by Lyell, one yet saw it partially through his eyes. When did Darwin acknowledge his debt in this way? It was in August, 1844. In 1842 he had written the first brief account of his theory of evolution—that sketch which will now be for the first time in the hands of the public—that sketch of which, thanks to your generosity, a gift has been made to every guest whom you are welcoming to Cambridge, a work which I for my

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A279 Pamphlet: Darwin, George and Francis Darwin eds. 1909. Darwin celebration, Cambridge, June, 1909. Speeches delivered at the banquet held on June 23rd. Cambridge: Cambridge Daily News. Text PDF

the relation between the most recent fossils and the forms now living in a country— by which Darwin was first convinced of the truth of evolution, we cannot avoid the conclusion that he was right in feeling the debt to be a very heavy one. Although Darwin spoke of the three years at Cambridge as the most joyful in my happy life, neither he nor Lyell appear to have thought that they owed very much to their Universities. In this respect I cannot but believe that both these great men were mistaken

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A279 Pamphlet: Darwin, George and Francis Darwin eds. 1909. Darwin celebration, Cambridge, June, 1909. Speeches delivered at the banquet held on June 23rd. Cambridge: Cambridge Daily News. Text PDF

respects assimilating more closely to the Universities of three-quarters of a century ago. Turning now to the ancient Universities as the lists where new ideas are compelled to undergo the trial of combat, we observe that the battle of evolution began with the dramatic encounter between Huxley and Wilberforce at the meeting of the British Association at Oxford, in 1860, and, according to Professor Newton, came to a close with the victory of the new teachings, only two years later, at the meeting of

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A288 Pamphlet: Hovey, Edmund Otis ed. 1909. Darwin memorial celebration. Annals of the New York Academy of Sciences 19, no. 1, Part 1 (31 July): 1-40. Text

by the president of the Academy and accepted by the president of the Museum. It is also proposed to hold in connection with the celebration an exhibition at the Museum of Darwiniana and objects illustrating Darwin's theory of evolution through natural selection and his work in botanical, zo logical and geological research. A Darwin Memorial Committee to make all arrangements has been appointed as follows: E. 0. Hovey, Chairman C. F. Cox W. D. Matthew J. A. Allen H. E. Crampton T. H. Morgan C. W

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A288 Pamphlet: Hovey, Edmund Otis ed. 1909. Darwin memorial celebration. Annals of the New York Academy of Sciences 19, no. 1, Part 1 (31 July): 1-40. Text

discoverable through human investigation. During the ages previous to the memorable year 1859 a few bold thinkers, now and then, had ventured to suggest a theory of general evolution, but they had failed to supply it with a substantial foundation of proof, or to assign to it a reasonable and intelligible cause, and had been, consequently, one and all, overwhelmed and suppressed by the powerful and prevalent dogma of special creation. Naturalists had been for centuries active in the collection of

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A288 Pamphlet: Hovey, Edmund Otis ed. 1909. Darwin memorial celebration. Annals of the New York Academy of Sciences 19, no. 1, Part 1 (31 July): 1-40. Text

can be shown in the far more important relation to its associates than to external conditions. Darwin's great contribution to the subject of evolution was the incontrovertible proof adduced by him that living species are modified descendants of pre xisting species, and that the modifications are brought about by natural causes. His observations led him to the conclusion that the modifications were all minute, gradual and cumulative. We know that they may also be considerable and abrupt and that

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A297 Book: Darwin, Francis & E. Hamilton Acton. 1909. Practical physiology of plants. Cambridge: University Press. Text Image PDF

INDEX. 331 19; oil stomata, 110; on circulating protoplasm, 20 Elfving, on behaviour of grass-haulms on the klinostat, 192; on diageotropic runners, 193; on etiolin, 54 ; on injection of vessels with cocoa-hutter, 92; nutritive solution for fungi, 68n.; on Phycomyces curving towards iron, 212 ; on heliotropism overcoming geotropism, 182 Elodea, assimilation of sugar by, 32 ; circulating protoplasm in, 16; used in assimilation experiments, 24, 32; for Engel-mann's blood-method, 40; evolution of

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A297 Book: Darwin, Francis & E. Hamilton Acton. 1909. Practical physiology of plants. Cambridge: University Press. Text Image PDF

, 191 Von Hohnel. see Hohnel Vries, see de Vries Waage, on Phloroglucin, 269 Wanklyn's albuminoid ammonia process applied to proteids, etc. 254 Ward, Marshall, on hanging-drop culture, 70 n. Water, absorbed by dead roots, 78; absorption of, by transpiring plant, 79; -culture, 58; extrusion under pressure of drops of, 78; free from C02, apparatus for preparing, 28; use of in extraction, 243, 245 Water-cress, used in De Saussure's experiment, 74 Water-plants, culture of without C02, 28; evolution

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A318 Pamphlet: Weismann, August. 1909. Charles Darwin und sein Lebenswerk: Festrede gehalten zu Freiburg i. Br. am 12. Februar 1909. Jena: Gustav Fischer. Text Image PDF

nach verschiedene Arten vertreten waren. Was sollte man aus diesen Tatsachen anders schließen, als daß die vulkanischen Inseln zu einer früheren Zeit Vögeleinwanderer vom Festland bekommen hatten, welche nun im Laufe der Jahrtausende auf jeder dieser Insel etwas variiert hatten, d. h. zu anderen Arten geworden waren. Diese und andere Erscheinungen weckten in Darwin den Gedanken der Evolution, und er beschloß, nach seiner Rückkehr diesem Problem weiter nachzugehen, denn er glaubte fest, es müsse