founding the Psychological Society, a group interested in psychical research, of which he became a vice-president. He was also a Fellow of the Society of Antiquaries of London. J. W. Burrow commented that Harris was "better described as a polymath and autodidact than an antiquary". Harris died at Northolt in Middlesex on 15 November 1890, at his residence Iselipps, an old manor-house that he had bought and enlarged. Works In 1847 Harris published his Life of Lord-chancellor Hardwicke (London, 3 vols.), dedicated to Albert, Prince Consort. It was a critical but not a commercial success. In 1868 Harris lost a friend and patron by the death of Lord Brougham. He contributed a Memoir of Brougham, with personal recollections, to the Law Magazine and Review, and it was separately published in 1868. In 1876 he brought out his Philosophical Treatise on the Nature and Constitution of Man (London, 2 vols.), on which he had been working for most of his life. In 1888 he issued an Autobiography for private circulation, mainly extracts from his diary kept from 1832, and with a preface by his friend Benjamin Ward Richardson. Harris also wrote: The True Theory of Representation in a State, London, 1852 ; 2nd edit. 1857. Civilization considered as a Science, in relation to its Essence, its Elements, and its End, London, 1861; 2nd ed. 1872. Principia Prima Legum; or, an Examination and Analysis of the Elementary Principles of Law, London, 1865 (only part i. published). The Theory of the Arts; or, Art in relation to Nature, Civilization, and Man, London, 1869, 2 vols. Supernatural Phenomena: Tests adapted to determine the Truth of Supernatural Phenomena, London, 1874. Harris contributed papers to the Journal of the Anthropological Society and to Modern Thought. He wrote legal biographies for the Law Magazine and Law Review, including those of Lord Westbury, Lord Cranworth, Lord-chief-baron Pollock, and Lord Wensleydale. Manuscripts commission Harris proposed an official commission, to investigate and catalogue manuscripts of historical interest in private collections. In 1857 he first brought forward his idea in a paper read at Birmingham in October before the Law Amendment Society, The Manuscript Treasures of this Country, and the best Means of rendering them available, published in the Transactions of the National Association for the Promotion of Social Science, of which Harris was an original member. He suggested the formation of a committee for the purpose of cataloguing and arranging