8vo (177 ×108 mm), pp. [4], viii, [8], 308; engraved frontispiece, vignettes to pp. 7, [177] and 308; contemporary mottled calf, gilt spine, red morocco label, joints cracked but holding

First edition of the first volume. The second volume appeared in 1780 and a second and third edition of both volumes appeared in 1783. Jackson, p. 45.