Over the course of his working life Darwin studied a wide range of organisms from coral to worms, dogs to pigeons, orchids to carnivorous plants. His letters often describe in great detail experiments and observations some of which never made it into print.
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, he wondered ‘would recognise a young Balanus in this ill-formed little monster?’ Darwin put his specimens away for over a decade, and when he returned to the puzzling little creature in October 1846, he planned only to write a paper on the anomalous ‘Mr Arthrobalanus’, as it was now known to him. The work took him eight years.
Darwin played an important role in the controversy over vivisection that broke out in late 1874. Public debate was sparked when the Royal Society for the Prevention of Cruelty to Animals brought an unsuccessful prosecution against a French physiologist who had performed vivisection on dogs.
One of the most exciting aspects of Charles Darwin’s correspondence is the opportunity it gives to researchers to ‘get to know’ Darwin as an individual. The letters not only reveal the scientific processes behind Darwin’s publications, they give insight into his personal life–the world of his family, his circle of friends and his community. This set of resource modules has been designed with the hopes of sharing some of the knowledge gained from our work on Darwin’s correspondence with university students.
Towards the end of 1862, Darwin resolved to build a small hothouse at Down House, for ‘experimental purposes’ (see Correspondence vol. 10, letter to J. D. Hooker, 24 December , and volume 10, letter to Thomas Rivers, 15 January 1863). The decision was evidently prompted by his growing engagement in botanical experimentation, and the building of the hothouse early in 1863 marked something of a milestone in Darwin’s botanical work, since it greatly increased the range of plants that he could keep for scientific investigations.
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 benefits of rural surroundings, where Darwin could make observations and undertake experiments in natural history, with reasonable ease of access to London, and was the environment within which Darwin’s work over the last forty years of his life was almost exclusively conducted.
One of the real pleasures afforded in reading Charles Darwin’s correspondence is the discovery of areas of research on which he never published, but which interested him deeply. We can gain many insights about Darwin’s research methods by following these ‘letter trails’ and observing how correspondence served as a vital research tool for him.
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 used his children to observe the flight paths of bumblebees around their home.
One of the most fascinating aspects of Charles Darwin’s correspondence is the extent to which the experiments he performed at his home in Down, in the English county of Kent, seem to prefigure modern scientific work in ecology.
Darwin recognised that explaining the evolution of the honey-bee’s comb-building abilities was essential if his theory of natural selection was to be taken seriously, and in the 1850s he carried out his own experiments at his home at Down House in Kent, and wrote many letters on the subject.
Queries on ratios of species to genera on southern islands. CD’s observations on distribution of Galapagos organisms, and on S. American fossils, and facts he has gathered since, lead him to conclusion that species are not immutable; "it is like confessing a murder".
On the problem of want of sterility in crosses of domestic varieties. Refers to discussion inOrigin, pp. 267–72 ["Fertility of varieties when crossed"]. We do not know precise cause of sterility in species.
Andrew Murray has attackedOrigin[see2647].
H. C. Watson objects to natural selection on grounds of limitless diversification of species.
Asks her to look for worm-castings in heath. Thinks heath conditions may be unfavourable. CD is sure Lucy would look with her, from her well-known affection for worms. Asks what sort of lantern Lucy used.