London: W. Strahan, et al., 1773. In two volumes. The Fourth Edition, Revised by the Author. Tall folio. Lacking advertisement leaf in first volume. Near-contemporary full polished calf, rebacked, stamped in gilt, green and red morocco spine labels; all edges trimmed. Endpapers and title-page spotted and toned in each volume; scattered light to moderate foxing to text throughout each volume, especially margins; bottom margin of leaf 6C2 repaired with offsetting to adjacent leaves; margins of leaf 19Y and 19Y2 heavily foxed; small closed tear to fore-edge of leaf 23F2; paper loss and closed tear to bottom corner of leaf 24Z2 . ESTC 006385733; Fleeman 55.4D-4a; [Courtney & Smith p. 55].