Sorry, no results... Try modifying your search: |
Darwin in letters, 1876: In the midst of life
Summary
1876 was the year in which the Darwins became grandparents for the first time. And tragically lost their daughter-in-law, Amy, who died just days after her son's birth. All the letters from 1876 are now published in volume 24 of The Correspondence…
From morphology to movement: observation and experiment
Summary
Darwin was a thoughtful observer of the natural world from an early age. Whether on a grand scale, as exemplified by his observations on geology, or a microscopic one, as shown by his early work on the eggs and larvae of tiny bryozoans, Darwin was…
Matches: 1 hits
- … never be understood. ’ When he was not able to observe insect visits, he substituted experimental …
Dipsacus and Drosera: Frank’s favourite carnivores
Summary
In Autumn of 1875, Francis Darwin was busy researching aggregation in the tentacles of Drosera rotundifolia (F. Darwin 1876). This phenomenon occurs when coloured particles within either protoplasm or the fluid in the cell vacuole (the cell sap) cluster…
Matches: 4 hits
- … prove these plants benefited from the absorption of insect matter. He was optimistic that by …
- … rainwater, then adapted to consume drowned nitrogenous insect matter (F. Darwin 1877a, pp. 5-8). In …
- … flourished in European hothouses year-round without any insect prey to feed on. Experiments executed …
- … size and biomass when the plants are supplemented with insect prey. Contemporary attempts to …
4.2 Augustus Earle, caricature drawing
Summary
< Back to Introduction The paucity of evidence for Darwin’s appearance and general demeanour during the years of the Beagle voyage gives this humorous drawing of shipboard life a special interest. It is convincingly attributed to Augustus Earle, an…
Orchids
Summary
Why Orchids? Darwin wrote in his Autobiography, ‘During the summer of 1839, and, I believe, during the previous summer, I was led to attend to the cross-fertilisation of flowers by the aid of insects, from having come to the conclusion in my…
Matches: 1 hits
- … namely the sticky glands, being adapted for fertilisation by insect agency—another part, namely the …
Tierra del Fuego
Summary
Barren coasts of Patagonia
Matches: 1 hits
- … Tells of the hostility of coasts of Tierra del Fuego to the insect world. …
Leonard Jenyns
Summary
When Darwin returned from the Beagle voyage there was no-one available to describe the fish that he had collected. At Darwin’s request Jenyns, a friend from Cambridge days, took on the challenge. It was not an easy one: at that time Jenyns had only worked…
Matches: 1 hits
- … delight in seeing his name in print for collecting a rare insect in 1829 was enhanced because he had …
The evolution of honeycomb
Summary
Honeycombs are natural engineering marvels, using the least possible amount of wax to provide the greatest amount of storage space, with the greatest possible structural stability. Darwin recognised that explaining the evolution of the honey-bee’s comb…
Matches: 3 hits
- … cell would be produced. The instinct which leads an insect to excavate, in order to form a cell, may …
- … to form a sufficiently large cell, in the case of an insect, which, under ordinary circumstances, …
- … of a greater degree of Divine wisdom bestowed on the insect, was the greatest piece of humbug they …
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: 3 hits
2.23 Hope Pinker statue, Oxford Museum
Summary
< Back to Introduction Henry Richard Hope Pinker’s life-size statue of Darwin was installed in the Oxford University Museum on 14 June 1899. It was the latest in a series of statues of great scientific thinkers, the ‘Founders and Improvers of Natural…
Matches: 1 hits
- … Poulton, who was Hope Professor of Zoology at Oxford. The insect specimens acquired by Revd …
Orchids
Summary
Sources|Discussion Questions|Experiment A project to follow On the Origin of Species Darwin began to observe English orchids and collect specimens from abroad in the years immediately following the publication of On the Origin of Species. Examining…
Matches: 1 hits
- … sticky gland so that the pollen will stick on the head of an insect. Letter 3421 …
Darwin and Down
Summary
Charles and Emma Darwin, with their first two children, settled at Down House in the village of Down (later ‘Downe’) in Kent, as a young family in 1842. The house came with eighteen acres of land, and a fifteen acre meadow. The village combined the…
Matches: 1 hits
- … can be made between the range of plant, animal, and insect life they supported in the nineteenth …
Darwin in letters, 1864: Failing health
Summary
On receiving a photograph from Charles Darwin, the American botanist Asa Gray wrote on 11 July 1864: ‘the venerable beard gives the look of your having suffered, and … of having grown older’. Because of poor health, Because of poor health, Darwin…
Matches: 3 hits
- … interest. At the start of the year, he received a letter, insect specimens, and an article on …
- … full of fluid, which facilitated a particular mode of insect pollination in Coryanthes ; he asked …
- … work, and by Darwin’s continuing identification of insect pollinators in 1864 and following years. …
A tale of two bees
Summary
Darwinian evolution theory fundamentally changed the way we understand the environment and even led to the coining of the word 'ecology'. Darwin was fascinated by bees: he devised experiments to study the comb-building technique of honey bees and…
Matches: 1 hits
- … if once landed in Australia probably destroy some native insect & I wish M r . Wilson would …
Cross and self fertilisation
Summary
The effects of cross and self fertilisation in the vegetable kingdom, published on 10 November 1876, was the result of a decade-long project to provide evidence for Darwin’s belief that ‘‘Nature thus tells us, in the most emphatic manner, that she abhors…
Matches: 1 hits
- … complexity of the research: simply preventing or allowing insect access to flowers was only the tip …
John Lubbock
Summary
John Lubbock was eight years old when the Darwins moved into the neighbouring property of Down House, Down, Kent; the total of one hundred and seventy surviving letters he went on to exchange with Darwin is a large number considering that the two men lived…
Matches: 1 hits
- … own dissections of ants, and references on variation in insect nervous systems. In the weeks …
Darwin in letters,1866: Survival of the fittest
Summary
The year 1866 began well for Charles Darwin, as his health, after several years of illness, was now considerably improved. In February, Darwin received a request from his publisher, John Murray, for a new edition of Origin. Darwin got the fourth…
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
- … Darwin discusses fertilisation in the bud and the insect pollination of papilionaceous flowers. His …
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…
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…
Matches: 1 hits
- … an dieselben (Alpine flowers, their fertilisation through insect agency and adaptations for this). …