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Darwin’s study of the Cirripedia
Summary
Darwin’s work on barnacles, conducted between 1846 and 1854, has long posed problems for historians. Coming between his transmutation notebooks and the Origin of species, it has frequently been interpreted as a digression from Darwin’s species work. Yet…
Matches: 29 hits
- … as the letters in this volume suggest, Darwin’s study of cirripedes, far from being merely a dry, …
- … the coast of Chile, Darwin found ‘most curious’ minute cirripedes buried within the shell of a …
- … was notable, for in 1835 the presence of larval stages of cirripedes was still a matter of dispute …
- … Vaughan Thompson’s account of the developmental history of cirripedes, which pointed out the …
- … had followed Linnaeus and Cuvier in classifying the cirripedes as molluscs because of their external …
- … pursued an anatomical study of pedunculated and sessile cirripedes, during which time he realised …
- … such a prominent role in Darwin’s classification of the cirripedes. Homology provided the key to …
- … Darwin frequently relied upon his current concern—the cirripedes—to help illustrate particular …
- … treatment of the natural history and systematics of the cirripedes. In a later volume of …
- … a key element in Darwin’s taxonomic evaluation of the cirripedes. It justified, for example, his …
- … development for assigning taxonomic rank, and since the cirripedes most nearly resembled degraded …
- … the Cirripedia indicated their community of descent. Since cirripedes exhibited characters common to …
- … complemental to and parasitic on the hermaphrodites. . . The Cirripedes form a highly varying and …
- … section to a description of the metamorphosis of cirripedes, explaining that this was necessary ‘on …
- … rank. Furthermore, studying the developmental history of cirripedes and thereby analysing the …
- … by what he discovered. The female differed from all other cirripedes (and, indeed, from all …
- … genera in the Lepadidae and, along with the pedunculated cirripedes Ibla and Scalpellum (and …
- … he maintained, even to establish its relation to the common cirripedes. Yet again homology guided …
- … cirripede, as deduced from the metamorphoses of other cirripedes, are plainly illustrated during the …
- … inclined to rank Proteolepas in one division, and all other cirripedes in another division of equal …
- … at all in any important character, from the pupæ of other cirripedes, I have thought the three …
- … in the Abdominalia (legs on abdomen), with all other cirripedes making up the Thoracica (legs on …
- … and existing creature were known, will readily admit, that Cirripedes were once separated by …
- … with the exuviæ of the parent, to a supporting surface. In Cirripedes, we may suppose the cementing …
- … comes from his discussion of the sexual relations of cirripedes. The hermaphroditism of cirripedes …
- … after finding little males attached to hermaphrodite cirripedes, for example, Darwin informed …
- … when he touched upon this matter in his 1857 lecture on cirripedes. In his praise of the monograph, …
- … board the Beagle , they were perfected by his work on the cirripedes. At the outset, Darwin …
- … of the anatomical characters of the soft parts of cirripedes. His astute recognition of subtle …
Darwin in letters, 1851-1855: Death of a daughter
Summary
The letters from these years reveal the main preoccupations of Darwin’s life with a new intensity. The period opens with a family tragedy in the death of Darwin’s oldest and favourite daughter, Anne, and it shows how, weary and mourning his dead child,…
Matches: 5 hits
- … two extremes were three-and-a-half more years devoted to the cirripedes. Before turning to his …
- … and, with the notable exception of Alcippe , the novel cirripedes already described. The …
- … Throughout 1851, Darwin concentrated on the pedunculated cirripedes, arranging for drawings and …
- … were devoted to the anatomy and classification of sessile cirripedes and culminated in Living …
- … In his first letters after ‘packing up’ all his cirripedes, he began to explore this phenomenon with …
Darwin in letters, 1847-1850: Microscopes and barnacles
Summary
Darwin's study of barnacles, begun in 1844, took him eight years to complete. The correspondence reveals how his interest in a species found during the Beagle voyage developed into an investigation of the comparative anatomy of other cirripedes and…
Matches: 4 hits
- … into an investigation of the comparative anatomy of other cirripedes and then into what became an …
- … offered ‘his truly beautiful collection’ of fossil cirripedes, which Darwin had declined before …
- … Once Darwin had decided to undertake a full monograph of the cirripedes, both living and fossil, he …
- … and the confusion surrounding the precise affinities of the cirripedes ( Correspondence vol. 4, …
Scientific Practice
Summary
Specialism|Experiment|Microscopes|Collecting|Theory Letter writing is often seen as a part of scientific communication, rather than as integral to knowledge making. This section shows how correspondence could help to shape the practice of science, from…
Matches: 4 hits
- … -like larva--“I have become a man of one idea. – cirripedes morning & night.” Letter …
- … to Ross, J. C., 31 Dec 1847 Darwin asks Ross to collect cirripedes for him on Ross's …
- … 25 Dec [1852] Darwin discusses the capacity of some cirripedes to bore into rock and mentions …
- … 23 Nov 1850 Darwin thanks Covington for the box of cirripedes specimens. He thanks him for the …
Living and fossil cirripedia
Summary
Darwin published four volumes on barnacles, the crustacean sub-class Cirripedia, between 1851 and 1854, two on living species and two on fossil species. Written for a specialist audience, they are among the most challenging and least read of Darwin’s works…
Matches: 4 hits
- … type of homology, one that was especially difficult in cirripedes because they had more than a …
- … for comparison with the British specimens ’. The fossil cirripedes volume was accepted by the …
- … within reach, Darwin’s troubles with the volumes on living cirripedes, destined for the Ray Society, …
- … is at last published ’. A second volume on fossil cirripedes appeared in May 1855 as part of …
Darwin and barnacles
Summary
In a letter to Henslow in March 1835 Darwin remarked that he had done ‘very little’ in zoology; the ‘only two novelties’ he added, almost as an afterthought, were a new mollusc and a ‘genus in the family Balanidæ’ – a barnacle – but it was an oddity. Who,…
Matches: 1 hits
- … of the books on board. Thompson was the first to argue that cirripedes were true Crustacea, based on …
Darwin in letters, 1858-1859: Origin
Summary
The years 1858 and 1859 were, without doubt, the most momentous of Darwin’s life. From a quiet rural existence filled with steady work on his ‘big book’ on species, he was jolted into action by the arrival of an unexpected letter from Alfred Russel Wallace…
Matches: 1 hits
- … The years 1858 and 1859 were, without doubt, the most momentous of Darwin’s life. From a quiet …
Scientific Networks
Summary
Friendship|Mentors|Class|Gender In its broadest sense, a scientific network is a set of connections between people, places, and things that channel the communication of knowledge, and that substantially determine both its intellectual form and content,…
Matches: 1 hits
- … He asks Cambridge botanist J. S Henslow’s help in naming cirripedes, on which he is working. He …
Forms of flowers
Summary
Darwin’s book The different forms of flowers on plants of the same species, published in 1877, investigated the structural differences in the sexual organs of flowers of the same species. It drew on and expanded five articles Darwin had published on the…
Matches: 1 hits
- … much as Lythrum since making out the Complemental males of Cirripedes. I fear that I have dragged in …
Darwin in letters, 1844–1846: Building a scientific network
Summary
The scientific results of the Beagle voyage still dominated Darwin's working life, but he broadened his continuing investigations into the nature and origin of species. Far from being a recluse, Darwin was at the heart of British scientific society,…
Matches: 1 hits
- … elucidate some of the problems presented by the animal. The cirripedes were to remain central to …
Darwin in letters, 1860: Answering critics
Summary
On 7 January 1860, John Murray published the second edition of Darwin’s Origin of species, printing off another 3000 copies to satisfy the demands of an audience that surprised both the publisher and the author. It wasn't long, however, before ‘the…
Matches: 1 hits
- … his interest, just as it had in his earlier study of the cirripedes. A chance observation of two …
Darwin in letters, 1882: Nothing too great or too small
Summary
In 1882, Darwin reached his 74th year Earthworms had been published the previous October, and for the first time in decades he was not working on another book. He remained active in botanical research, however. Building on his recent studies in plant…
Matches: 1 hits
- … figures, seeking information or specimens. Hard at work on cirripedes, he wrote to the geologist …
