Illumni sui Charissimi Josephi Ball calculorum Rationem experimens Libellus Quemq. Tuulis ornavit Powell. 1733. [Ms. vol., with ornamentally drawn title page and headings in English and French. Book chiefly of titles to the various rules of arithmetic. Bears ms. pencil note on inside front cover: 'The book of Joseph Ball the very dear pupil of Powell; being an exposition of the method of calculation: illustrated with headings by Powell']