Washington, D.C.: Woodstock Books (1791)
First published in 1749, Hartley's great work was abridged by Priestley in 1775 and reissued as a whole by Joseph Johnson in 1791. To Priestley, who founded his Unitarianism on the Observations, it seemed that Hartley was the greatest of human beings with the single exception of Jesus. Coleridge adopted his associationist theology in the mid 1790s, naming his eldest son David Hartley Coleridge, and passing on to Wordsworth the theory of mind that underlies 'Tintern Abbey', the early Prelude and the 1800 Preface to Lyrical Ballads. An indispensable book.