(ESSAY). ~ An Essay on Immorality. In three Parts. London: Printed for the author, and sold by John Hart. 1760.
4to (260 × 205 mm), pp. , 56, with half-title, plus fine engraved frontispiece by Grignion after Hayman; preserved in modern marbled boards, label to upper cover wrongly attributing the work to Churchill.
First edition. This anonymous work is addressed ‘To the inconsiderate and careless of the present age: for the serious perusal of a sober hour’. It was well reviewed by both the Critical and Monthly Review.