Mendoza Rios's Tables for Navigation (London, 1805): a Spanish computer's tables, subsidised by the Board of Longitude to reach poor navigators

In 1805 a Spaniard published in London a complete collection of tables for finding longitude by lunar distance. The Commissioners of Longitude and the East India Company each voted money to cut its price, and the author gave up his profit, so it would not be confined to navigators "in easy circumstances". Sixty-eight years later the British Association's committee on mathematical tables was still using his terminology and recording other men's tables copied from his.