The Free Discussion between Richard Price and Joseph Priestley (1778) originated as a correspondence between the two after the publication of Priestley's Disquisitions on Matter and Spirit, his most important philosophical work (1777). At the time it was thought remarkable that a controversey such as this could be conducted so amicably, but then the two were close friends. Nevertheless their philosophical, as opposed to their oft mentioned political views, were at opposite ends of a spectrum.

Joseph Priestley (1733-1804) is one of the major figures of the English Enlightenment. A contemporary and friend of Benjamin Franklin and Thomas Jefferson, he exceeded even these polymaths in the breadth of his curiosity and learning. Yet no one has attempted an all-inclusive biography of Priestley, probably because he was simply too many persons for anyone easily to comprehend in a single study. Robert Schofield has devoted a lifetime of scholarship to this task. The result is a magisterial book, covering the life and works of Priestley during the critical first forty years of his life. Although Priestley is best known as a chemist, this book is considerably more than a study in the history of science. As any good biographer must, Schofield has thoroughly studied the many activities in which Priestley was engaged. Among them are theology, electricity, chemistry, politics, English grammar, rhetoric, and educational philosophy. Schofield situates Priestley, the provincial dissenter, within the social, political, and intellectual contexts of his day and examines all the works Priestley wrote and published during this period. Schofield singles out the first forty years of Priestley's life because these were the years of preparation and trial during which Priestley qualified for the achievements that were to make him famous. The discovery of oxygen, the defenses of Unitarianism, and the political liberalism that characterize the mature Priestley - all are foreshadowed in the young Priestley. A brief epilogue looks ahead to the next thirty years when Priestley was forced out of England and settled in Pennsylvania, the subject of Schofield's next book. But this volume stands alone as thedefinitive study of the making of Joseph Priestley.

Ten authors follow Priestley's (1733-1804) evolution from Calvinism to Unitarianism.

Joseph Priestley was one of the most remarkable thinkers of the eighteenth century. Best known today as the scientist who discovered oxygen, he also made major contributions in the fields of education, politics, philosophy, and theology. This collection of essays by a team of experts covers the full range of Priestley's work and provides a new and up to date account of all his activities, together with a summary of his life and an account of his last years in America. The book will re-establish him as a major intellectual figure in Britain and America in the second half of the eighteenth century.