The Theory and Practice of Finding the Longitude at Sea or Land:
to which are added, various methods of determining the latitude of a place, and variation of the compass; with new tables.
First edition, 2 volumes bound as one, 8vo (21.1 x 12.6 cm). 7 engraved folding plates. Recent half calf period style (retaining the original endpapers), red morocco label, marbled sides. Scattered foxing and a few old pale stains. A very good copy, with half-title to both volumes.
Adams & Waters (English Maritime Books Printed Before 1801), p. 407.