_Practical Education_ (1798) was written in collaboration with his daughter Maria, and embodied the experience of the authors in dealing with children. "So commenced," says Miss Edgeworth, "that literary partnership which, for so many years, was the pride and joy of my life" (_Memoirs_, ii. 170). This book, generally regarded as old-fashioned, has a real value in the history of education. Mr Edgeworth's interest in the subject had been inspired by the study of Rousseau and by his friendship with Thomas Day. But he went beyond Rousseau, who developed his theories from his own ingenious mind and related an imaginary process. The Edgeworths brought a scientific method to their work. The second Mrs Edgeworth (Honora Sneyd) began the collection of actual examples of conversations between the children and their elders. This was continued patiently by the writers of the book; and their reasonings were thus founded on an accurate record of childish methods of thought. They deprecated especially any measures that interrupted the child's own chain of reasoning. The chapters on special subjects of study, chronology, geometry, &c., were written by Richard Lovell Edgeworth; those on toys, on rewards and punishments, on temper, &c., by his daughter.[1] In 1798 Edgeworth married Miss Beaufort, and was elected M.P. for the borough of St John's Town, Longford. The same year, too, saw a hostile landing of the French and a formidable rebellion; and for a short time the Edgeworths took refuge in Longford. The winter of 1802 they spent in Paris. In 1804 the government accepted his telegraphic apparatus, but the installation was left incomplete when the fear of invasion was past. In 1802 appeared the _Essay on Irish Bulls_ by Mr and Miss Edgeworth; and in 1806 Edgeworth was elected a member of the board of commissioners to inquire into Irish education. From 1807 till 1809 much of his time was spent on mechanical experiments and in writing the story of his life. In 1808 appeared _Professional Education_, and in 1813 his _Essay on the Construction of Roads and Carriages_. He died on the 13th of June 1817, and was buried in the family vault in Edgeworthstown churchyard. Many of Edgeworth's works were suggested by his zeal for the education of his own children. Such were _Poetry Explained for Young People_ (1802), _Readings in Poetry_ (1816), _A Rational Primer_ (unpublished), and the parts of _Early Lessons_ contributed by him. His speeches in the Irish parliament have also been published; and numerous essays, mostly on scientific subjects, have appeared in the _Philosophical Transactions_, the _Transactions of the Royal Irish Academy_, the _Monthly Magazine_ and _Nicholson's Journal_. The story of his early life, told by himself, is fully as entertaining as the continuation by Maria, as it contains less dissertation and more incident. One of his daughters by his first marriage, Anna Maria, married Dr Beddoes and became the mother of T.L. Beddoes, the poet.