Watts (Isaac). The Improvement of the Mind: Or, a Supplement to the Art of Logic: Containing a Variety of Remarks and Rules for the Attainment and Communication of Useful Knowledge, in Religion, in the Sciences, and in Common Life, 2 vols., 1781-83, a matched set, contemp. sprinkled calf gilt, contrasting lettering pieces to spines, a little chipped at head, 8vo, together with Locke (John), An Abridgment of Mr. Locke's Essay Concerning Human Understanding. A New Edition, with Additions. Carefully Revised and Corrected, Edinburgh, 1770, spotting and old dampstaining throughout, some browning at front and rear, contemporary ownership inscription of Joseph Haydock Boardman to front free endpaper, contemporary calf, neatly rebacked with gilt-decorated spine relaid and new leather label, a little wear to corners, tall 12mo, plus five other antiquarian (8)