To J. D. Hooker [April 1852]
Summary
Questions on variation in nature: taxa varying in one region but not another. Variation between vs within species. Rarity of variation in important organs within a species. G. R. Waterhouse’s views on variation in highly developed organs, which CD relates to variation in rudimentary organs.
Asks for cases of obligate self-fertilising plants.
[CD annotation proposes using the Steudel Nomenclator botanicus (1821–4) to determine if variable species occur in genera with many species.]
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | [Apr 1852] |
| Classmark: | DAR 107: 66–7 |
| Letter no: | DCP-LETT-1496 |
To J. D. Dana 25 November [1852]
Summary
Thanks JDD for information.
Discusses Acasta sporillus.
Comments on review of first volume of Living Cirripedia [Am. J. Sci. 2d ser. 14 (1852): 125–7].
Asks JDD to examine Lerneidae.
Will read with interest the geographical discussion of Crustacea when JDD’s volume [Crustacea (1852–5)] appears. John Lubbock will purchase a copy.
Discusses error in Living Cirripedia.
| Author: | Charles Robert Darwin |
| Addressee: | James Dwight Dana |
| Date: | 25 Nov [1852] |
| Classmark: | Yale University Library: Manuscripts and Archives (Dana Family Papers (MS 164) Series 1, Box 2, folder 43) |
| Letter no: | DCP-LETT-1492 |
| letter | (2) |
| Darwin, C. R. | (2) |
| Dana, J. D. | (1) |
| Hooker, J. D. | (1) |
| Darwin, C. R. | (2) |
| Dana, J. D. | (1) |
| Hooker, J. D. | (1) |
Dramatisation script
Summary
Re: Design – Adaptation of the Correspondence of Charles Darwin, Asa Gray and others… by Craig Baxter – as performed 25 March 2007
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- … Re: Design – performance version – 25 March 2007 – 1 Re: Design – Adaptation of the …
Biogeography
Summary
Sources|Discussion Questions|Experiment Observations aboard the Beagle During his five year journey around the world on HMS Beagle, Charles Darwin encountered many different landscapes and an enormous variety of flora and fauna. Some of his most…
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- … Sources | Discussion Questions | Experiment Observations aboard the Beagle …
Schools Gallery: Using Darwin’s letters in the classroom
Summary
English| History| Science English Pupils in Cumbria lead the way Year 9 English pupils at Ulverston Victoria High School spent several weeks studying Darwin’s letters, including comparing sections from Darwin’s ‘Voyage of the Beagle’ to letters…
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- … English | History | Science English Pupils in Cumbria lead …
Darwin’s hothouse and lists of hothouse plants
Summary
Darwin became increasingly involved in botanical experiments in the years after the publication of Origin. The building of a small hothouse - a heated greenhouse - early in 1863 greatly increased the range of plants that he could keep for scientific…
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- … Towards the end of 1862, Darwin resolved to build a small hothouse at Down House, for …
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,…
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- … The letters from these years reveal the main preoccupations of Darwin’s life with a new intensity. …
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,…
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- … Friendship | Mentors | Class | Gender In its broadest sense, a scientific …
What is an experiment?
Summary
Darwin is not usually regarded as an experimenter, but rather as an astute observer and a grand theorist. His early career seems to confirm this. He began with detailed note-taking, collecting and cataloguing on the Beagle, and edited a descriptive zoology…
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- … Darwin is not usually regarded as an experimenter, but rather as an astute observer and a grand …
Darwin's bad days
Summary
Despite being a prolific worker who had many successes with his scientific theorising and experimenting, even Darwin had some bad days. These times when nothing appeared to be going right are well illustrated by the following quotations from his letters:
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- … Despite being a prolific worker who had many successes with his scientific theorising and …
Women’s scientific participation
Summary
Observers | Fieldwork | Experimentation | Editors and critics | Assistants Darwin’s correspondence helps bring to light a community of women who participated, often actively and routinely, in the nineteenth-century scientific community. Here is a…
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- … Observers | Fieldwork | Experimentation | Editors and critics | Assistants …
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…
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- … Specialism | Experiment | Microscopes | Collecting | Theory Letter writing …
Darwin’s reading notebooks
Summary
In April 1838, Darwin began recording the titles of books he had read and the books he wished to read in Notebook C (Notebooks, pp. 319–28). In 1839, these lists were copied and continued in separate notebooks. The first of these reading notebooks (DAR 119…
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- … In April 1838, Darwin began recording the titles of books he had read and the books he wished to …
Variation under domestication
Summary
Sources|Discussion Questions|Experiment A fascination with domestication Throughout his working life, Darwin retained an interest in the history, techniques, practices, and processes of domestication. Artificial selection, as practiced by plant and…
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- … Sources | Discussion Questions | Experiment A fascination with domestication …
3.2 Maull and Polyblank photo 1
Summary
< Back to Introduction The rise of professional photographic studios in the mid nineteenth century was a key factor in the shaping of Darwinian iconography, but Darwin’s relationship with these firms was from the start a cautious and sometimes a…
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- … < Back to Introduction The rise of professional photographic studios in the mid …
Hermann Müller
Summary
Hermann (Heinrich Ludwig Hermann) Müller, was born in Mühlberg near Erfurt in 1829. He was the younger brother of Fritz Müller (1822–97). Following the completion of his secondary education at Erfurt in 1848, he studied natural sciences at Halle and Berlin…
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- … Hermann (Heinrich Ludwig Hermann) Müller, was born in Mühlberg near Erfurt in 1829. He was the …
Before Origin: the ‘big book’
Summary
Darwin began ‘sorting notes for Species Theory’ on 9 September 1854, the very day he concluded his eight-year study of barnacles (Darwin's Journal). He had long considered the question of species. In 1842, he outlined a theory of transmutation in a…
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- … Darwin began ‘sorting notes for Species Theory’ on 9 September 1854, the very day he concluded his …
Darwin in letters, 1856-1857: the 'Big Book'
Summary
In May 1856, Darwin began writing up his 'species sketch’ in earnest. During this period, his working life was completely dominated by the preparation of his 'Big Book', which was to be called Natural selection. Using letters are the main…
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- … On 14 May 1856, Charles Darwin recorded in his journal that he ‘Began by Lyell’s advice writing …
Darwin's notes for his physician, 1865
Summary
On 20 May 1865, Emma Darwin recorded in her diary that John Chapman, a prominent London publisher who had studied medicine in London and Paris in the early 1840s, visited Down to consult with Darwin about his ill health. In 1863 Chapman started to treat…
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- … On 20 May 1865, Emma Darwin recorded in her diary that John Chapman, a prominent London publisher …
Darwin’s Photographic Portraits
Summary
Darwin was a photography enthusiast. This is evident not only in his use of photography for the study of Expression and Emotions in Man and Animal, but can be witnessed in his many photographic portraits and in the extensive portrait correspondence that…
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- … Darwin was a photography enthusiast. This is evident not only in his use of photography for the …
New material added to the American edition of Origin
Summary
A ‘revised and augmented’ American edition of Origin came on the market in July 1860, and was the only authorised edition available in the US until 1873. It incorporated many of the changes Darwin made to the second English edition, but still contained…
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- … The ‘historical sketch’ printed as a preface to the American edition ( Origin US ed., pp …
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,…
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- … The scientific results of the Beagle voyage still dominated Darwin's working life, but …
