272 pp, advert on verso of half title, 4 woodcuts in the text, one with woodcut volvelle, faint waterstain affecting some early pages, inner hinge of title strengthened, sm 8vo, modern calf,
In 1714 the British Government published and Act offering a bounty to be given for the discovery of an exact method for calculating Longitude, which was not claimed until 1773 by John Harrison. Anson's Voyage Round the Word in the 1740's and the expansion of knowledge of the Pacific, leading to Cook's three Voyages in the late 18th century, gave the period a geographical and nautical frenzy. The printers "on Tower Hill where you may have all sorts of Sea-Books", advertise 32 titles on the Sea, including Pilots for the East and West Indies and Guinea.
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