Search Results - The Complete Work of Charles Darwin Online

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F660 Book: Darwin, C. R. 1873. L'origine des espèces au moyen de la sélection naturelle, ou La lutte pour l'existence dans la nature. Traduit sur l'invitation et avec l'autorisation de l'auteur sur les cinquième et sixième éditions anglaises. Augmentées d'un nouveau chapitre et de nombreuses notes et additions de l'auteur, par J.-J. Moulinié. Paris: C. Reinwald et Cie. Text Image PDF

A LA CINQUIÈME ÉDITION. 535 comme portant deux sortes de pédicellaires, l'un ressemblant à celles del'Echinus, et l'autre à celles du Spatangus; cas intéressants comme fournissant des exemples de transitions subites d'apparence, résultant de Pavortement d'un des deux états d'un organe. M. Agassiz conclut de ses propres recherches et de celles de Mùller, au sujet de la marche que ces organes curieux ont dû suivre dans leur évolution, qu'il faut sans aucun doute considérer les pédicellaires tant

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F660 Book: Darwin, C. R. 1873. L'origine des espèces au moyen de la sélection naturelle, ou La lutte pour l'existence dans la nature. Traduit sur l'invitation et avec l'autorisation de l'auteur sur les cinquième et sixième éditions anglaises. Augmentées d'un nouveau chapitre et de nombreuses notes et additions de l'auteur, par J.-J. Moulinié. Paris: C. Reinwald et Cie. Text Image PDF

Ptérodactyles. Cette conclusion, qui implique d'énormes lacunes et une discontinuité de la série, me paraît improbable au plus haut degré. Les partisans d'une évolution lente et graduelle doivent admettre que des changements spécifiques aient pu être aussi subits et, aussi considérables à l'état de nature qu'une simple variation isolée, comme cela a lieu à l'état domestique. Pourtant les espèces élevées ou cultivées étant bien plus variables que les espèces sauvages, il est peu probable que ces

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A2383 Review: Anon. 1873. [Review of Expression]. Phrenological Journal and Life Illustrated (New York), 56 (March): 214. Text PDF

The Complete Work of Charles Darwin Online [page] 214 THE EXPRESSION OF THE EMOTIONS in Man and Animals. By Charles Darwin, M.A., F.R.S., etc. With photographic and other Illustrations. 12mo, cloth; pp. 367. Price, $ 2.00. New York: D. Appleton Co. The distinguished advocate of the doctrine of evolution appears before the world in this new volume in a character quite distinct from that which his previous writings have given him. Here he appears as the close observer and critic of the movements

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F660 Book: Darwin, C. R. 1873. L'origine des espèces au moyen de la sélection naturelle, ou La lutte pour l'existence dans la nature. Traduit sur l'invitation et avec l'autorisation de l'auteur sur les cinquième et sixième éditions anglaises. Augmentées d'un nouveau chapitre et de nombreuses notes et additions de l'auteur, par J.-J. Moulinié. Paris: C. Reinwald et Cie. Text Image PDF

pas sur d'autres. Enfin, l'embryon peut se développer et périr au commencement de son évolution. Cette dernière alternative n'a pas été l'objet de l'attention qu'elle mérite, car, d'après des observations qui m'ont été communiquées par M. Hewitt, un homme des plus compétents et qui a une grande expérience sur l'hybridi-sation des faisaus et des poules, il paraîtrait que la mort précoce de l'embryon est une des causes les plus fréquentes de la stérilité des premiers croisements. M. Salter a

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F660 Book: Darwin, C. R. 1873. L'origine des espèces au moyen de la sélection naturelle, ou La lutte pour l'existence dans la nature. Traduit sur l'invitation et avec l'autorisation de l'auteur sur les cinquième et sixième éditions anglaises. Augmentées d'un nouveau chapitre et de nombreuses notes et additions de l'auteur, par J.-J. Moulinié. Paris: C. Reinwald et Cie. Text Image PDF

transforme généralement en fruit. OvitiiîiiE. — Portant l'œuf. Ovules (des plantes). — Lés semences dans leur première évolution. Pachydebmes. — Un groupe de mammifères, ainsi appelés à cause de leur peau épaisse, comprenant l'éléphant, le rhinocéros, l'hippopotame, etc. Paliîozoïqub. — Le plus ancien système de roches fossilifères. Palpes. — Appendices à articulations à quelques organes do la bouche chez les insectes et les crustacés. Papilionacées. — Ordre de plantes. (Voyez Légumineuses.) Les

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F1760 Periodical contribution: Darwin, C. R. 1873. Origin of certain instincts. Nature. A Weekly Illustrated Journal of Science 7 (3 April): 417-418. Text Image PDF

sterile workers have somewhat different habits and instincts, as shown by their combs. There are also many species of ants, the fertile females of which are believed not themselves to work, but to be served by the neuters, which capture and drag them to their nests; and the instincts of the neuters in the different species of the same genus are often different. All who believe in the principle of evolution will admit that with social insects the closely allied species of the same genus are

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CUL-DAR205.1.9 Printed: 1873.05.00 Notes on some Andamanese and Nicobarese reptiles (abstract) `(Calcutta) Asiatic Society of Bengal Proceedings': 118 Text Image

1873.] F. Stoliczka On the Passalidce. 117 and effects, and had taught modern naturalists to regard classification as true only when it is based upon those affinities which result from community of evolution. A true classification therefore on this view is to be regarded as the final result of the science, and is to be patiently worked out by studying the causes that have determined it. Dr. Kaup's system sweeps away all this, and seeks to impose in its stead, an arbitrary Procrustean plan of

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F1762 Periodical contribution: Darwin, C. R. 1873. On the males and complemental males of certain cirripedes, and on rudimentary structures. Nature. A Weekly Illustrated Journal of Science 8 (25 September): 431-432. Text Image PDF

hermaphrodite; and in Alcippe, fourteen males attached to a single female. He who admits the principle of evolution will naturally inquire why and how these minute rudimentary males, and especially the complemental males, have been developed. It is of course impossible to give any definite answer, but a few remarks may be hazarded on this subject. In my Variation under Domestication, I have given reasons for the belief that it is an extremely general, though apparently not quite universal law

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CUL-DAR245.300 Correspondence: Litchfield Henrietta Emma née Darwin to Darwin George Howard [1873.10.27] Litchfield Henrietta Emma née Darwin to Darwin George Howard Text Image

You ought to feel, how will such a publication affect the Evolution Theory as represented by my Father? Publishing such an essay is a very important step however much you stood alone – but I think your particular circumstances make it enormously more important. I quite agree with what you have said in your letter [5

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A21 Review: S. 1873. Bain's review of "Darwin on expression". Nature (6 November): 2-3. Text Image

volume I have not made use of the principle of Evolution to explain either the complex Feelings or the complex Intellectual powers. I believe, however, that there is much to be said in behalf of the principle for both applications. In the third edition of 'The Emotions and the Will,' now in preparation, I intend to discuss it at full length. No man can claim to have done more for the study of psychology than Prof. Bain; and in now recognising the principle of evolution and in incorporating it with

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CUL-DAR209.1.41-43 Note: [ny].11.30--[ny].12.01 Desmodium [with diagrams]. Drafts of Expression Text Image

haute perfection. The belief that blushing was specially designed by the Creator is opposed to the general theory of evolution, which is now so largely accepted; but it forms no part of my duty here to argue on the general question. Those who believe in design, will find it difficult to account for shyness being the most frequent and efficient of all the causes of blushing, as it makes the [Expression, pp. 337-8: Theory of Blushing.—We have now to consider, why should the thought that others are

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A12 Book: Tyndall, John. 1874. Address Delivered Before the British Association Assembled at Belfast, With Additions. London: Longmans, Green, and Co. Text

ledge unattainable by birds which cannot employ their feet as hands. The elephant is the most sagacious of quadruped sits tactual range and skill, and the consequent multiplication of experiences, which it owes to its wonderfully adaptable trunk, being the basis of its sagacity. Feline animals, for a similar cause, are more sagacious than hoofed animals atonement being to some extent made, in the case of the horse, by the possession of sensitive prehensile lips. In the Primates the evolution

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A12 Book: Tyndall, John. 1874. Address Delivered Before the British Association Assembled at Belfast, With Additions. London: Longmans, Green, and Co. Text

dog or cat ought to be as capable of education as a man. These predetermined internal relations are independent of the experiences of the individual. The human brain is the 'organised register of infinitely numerous experiences received during the evolution of life, or rather during the evolution of that series of organisms through which the human organism has been reached. The effects of the most uniform and frequent of these experiences have been successively bequeathed, principal and

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F944 Book: Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand. Text Image PDF

can generally be arranged in little groups round other species, like satellites round planets.20 The question whether mankind consists of one or several species has of late years been much discussed by anthropologists, who are divided into the two schools of monogenists and polygenists. Those who do not admit the principle of evolution, must look at species as separate creations, or as in some manner as distinct entities; and they must decide what forms of man they will consider as species by

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F944 Book: Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand. Text Image PDF

If we admit the principle of gradual evolution, there must formerly have existed many species which presented every successive step between the wonderfully elongated tail-coverts of the peacock and the short tail-coverts of all ordinary birds; and again between the magnificent ocelli of the former, and the simpler ocelli or mere coloured spots on other birds; and so with all the other characters of the peacock. Let us look to the allied Gallinace for any still-existing gradations. The species

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A12 Book: Tyndall, John. 1874. Address Delivered Before the British Association Assembled at Belfast, With Additions. London: Longmans, Green, and Co. Text

that the question had been fermenting long prior to the year 1858, when Mr. Darwin and Mr. Wallace simultaneously but 16. Zoonomia, vol. i. pp. 500-510. 17. In 1855 Mr. Herbert Spencer (Principles of Psychology, 2nd edit. vol. i. p. 465) expressed 'the belief that life under all its forms has arisen by an unbroken evolution, and through the instrumentality of what are called natural causes.' [page] 3

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A12 Book: Tyndall, John. 1874. Address Delivered Before the British Association Assembled at Belfast, With Additions. London: Longmans, Green, and Co. Text

its environment,' the same parallelism, without contact, or even approach to contact, is implied. Man the object is separated by an impassible gulf from man the subject. There is no motor energy in intellect to carry it without logical rupture from the one to the other. Further, the doctrine of evolution derives man in his totality from the inter-action of organism and environment through countless ages past. The Human Understanding, for example that faculty which Mr. Spencer has turned so

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F1050.1 Book: Darwin, C. R. 1874. Menneskets Afstamning og Parringsvalget. Translated by J. P. Jacobsen. Copenhagen: Gyldendal. Volume 1. Text Image PDF

sig ogsaa, s rlig med de opvoksende yngre Naturforskere. Flertallet indr mmer Kvalitetsvalgets Virken, om der end er Nogle, der h vde — om med Rette eller Urette, det maa Fremtiden afgj re — at jeg i h j Grad har overvurderet dets Betydning. Af Naturvidenskabens ldre og h jt agtede Storm nd er der uheldigvis endnu stadig mange, der mods tte sig Evolution i en hvilkensomhelst Form. De Anskuelser, som nu ere anerkjendte af de fleste Naturforskere og som sluttelig, som i ethvert andet. Tilf lde

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F944 Book: Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand. Text Image PDF

, des esp ces, it is manifest that at least a large number of naturalists must admit that species are the modified descendants of other species; and this especially holds good with the younger and rising naturalists. The greater number accept the agency of natural selection; though some urge, whether with justice the future must decide, that I have greatly overrated its importance. Of the older and honoured chiefs in natural science, many unfortunately are still opposed to evolution in every form

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A12 Book: Tyndall, John. 1874. Address Delivered Before the British Association Assembled at Belfast, With Additions. London: Longmans, Green, and Co. Text

their succession, but the real nature of which we can never know.23 In fact, the whole process of evolution is the manifestation of a Power absolutely inscrutable 22. Bestimmung des Menschen. 23. In a paper, at once popular and profound, entitled Recent Progress in the Theory of Vision, contained in the volume of Lectures by Helmholtz, published by Longmans, this symbolism of our [page] 5