in a rationalisation of the contradictions in Priestley's thought, because they have been "organized around philosophical categories" and have "separate[d] the producers of scientific ideas from any social conflict". Priestley has been remembered by the towns in which he served as a reforming educator and minister and by the scientific organisations he influenced. Two educational institutions have been named in his honour—Priestley College in Warrington and Joseph Priestley College in Leeds (now part of Leeds City College)—and an asteroid, 5577 Priestley, discovered in 1986 by Duncan Waldron. In Birstall, the Leeds City Square, and in Birmingham, he is memorialised through statues, and plaques commemorating him have been posted in Birmingham, Calne and Warrington. The main undergraduate chemistry laboratories at the University of Leeds were refurbished as part of a £4m refurbishment plan in 2006 and renamed as the Priestley Laboratories in his honour as a prominent chemist from Leeds. In 2016 the University of Huddersfield renamed the building housing its Applied Sciences department as the Joseph Priestley Building, as part of an effort to rename all campus buildings after prominent local figures. Since 1952 Dickinson College, Pennsylvania, has presented the Priestley Award to a "distinguished scientist whose work has contributed to the welfare of humanity". Priestley's work is recognised by a National Historic Chemical Landmark designation for his discovery of oxygen, made on 1 August 1994, at the Priestley House in Northumberland, Penn., by the American Chemical Society. Similar recognition was made on 7 August 2000, at Bowood House in Wiltshire, England. The ACS also awards their highest honour, the Priestley Medal, in his name. Several of his descendants became physicians, including the noted American surgeon James Taggart Priestley II of the Mayo Clinic. Archives Papers of Joseph Priestley are held at the Cadbury Research Library, University of Birmingham. Selected works The Rudiments of English Grammar (1761) A Chart of Biography (1765) Essay on a Course of Liberal Education for Civil and Active Life (1765) The History and Present State of Electricity (1767) Essay on the First Principles of Government (1768) A New Chart of History (1769) Institutes of Natural and Revealed Religion (1772–74) Experiments and Observations on Different Kinds of Air (1774–77) Disquisitions Relating to Matter and Spirit (1777) The Doctrine of Philosophical Necessity Illustrated (1777) Letters to a Philosophical Unbeliever (1780) An History of the Corruptions of Christianity (1782) Lectures on History and General Policy (1788) Theological Repository