A voyage to South America: describing at large the Spanish cities, towns, provincies, &c. on that extensive continent. Interspersed throughout with reflections on the genius, customs, manners, and trade of the inhabitants; together with the natural history of the country. And an account of their gold and silver mines. Undertaken by command of his Majesty the King of Spain, by Don George Juan, and Don Antonio de Ulloa

Dublin: William Williamson, 1758. First Dublin edition (the first English edition was printed in London earlier the same year), 2 volumes, 8vo, pp. xviii, [19]-378; [4], [9]-356; 5 engraved plates (3 folding); contemporary full calf recased and rebacked in modern calf of slightly varying color, gilt lettered direct on spine; the rebacking not brilliant, but not unsightly either; very good and sound. Early bookplate of the German Society of Philadelphia. A translation of Ulloa's Relacion historica del viage a la America Meridional ... Madrid, 1743 recounting the French scientific expedition from the perspective of Ulloa, a Spanish sailor who accompanied them on the mission. "The end result was a fund of important scientific observations in various fields, as well as the knowledge that the earth was not perfectly spherical, but flattened at the poles" (Hill). Sabin 36873; this edition not in Hill, Pacific Voyages.