Emma Darwin with Leonard Darwin as a child Cambridge University Library
The seven-year period following Darwin's return to England from the Beagle voyage was one of extraordinary activity and productivity in which he became recognised as a naturalist of outstanding ability, as an author and editor, and as a professional man with official responsibilities in several scientific organisations. They are also the years in which he married, started a family, and moved to Down House, Kent, his home for the rest of his life. By 1842 he was ready to write an outline of his species theory, the so-called 'pencil sketch', based on a principle that he called ‘natural selection’.
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Joseph Dalton Hooker, from the portrait by George Richmond, 1855 Cambridge University Library
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, travelling often to London and elsewhere to attend meetings and confer with colleagues, including the man who was to become his closest friend, Joseph Dalton Hooker. Down House was altered and extended to accommodate Darwin’s growing family; and, with his father’s advice, Darwin began a series of judicious financial investments to ensure a comfortable future for all those under his care.
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http://cudl.lib.cam.ac.uk/view/MS-DAR-00048/187 Part of a letter from W. H. Miller to Darwin exploring the geometrical architecture of honey-combs Cambridge University Library
From a quiet rural existence at Down in Kent, filled with steady work on his ‘big book’ on the transmutation of species, Darwin was jolted into action in 1858 by the arrival of an unexpected letter (no longer extant) from Alfred Russel Wallace outlining a remarkably similar mechanism for species change. This letter led to the first announcement of Darwin’s and Wallace’s respective theories of organic change at the Linnean Society of London in July 1858 and prompted the composition and publication, in November 1859, of Darwin’s major treatise On the origin of species by means of natural selection.
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