A new history of Ethiopia : being a full and accurate description of the kingdom of Abessinia, vulgarly, though erroneously, called the empire of Prester John : in four books : wherein are containing, I. an account of the nature, quality, and condition of the country, and inhabitants, their mountains, metals, and minerals, their rivers, (particularly, of the source of the Nile and Niger) ... &c. : II. their political government ... &c. : III. their ecclesiastical affairs, their conversion to the Christian religion ... their sacred writings ... &c. : IV. their private economy, their books and learning, their common names, their diet, marriages, and polygamies, their mechanick arts and trades ... &c. : illustrated with copper plates /