Isaac Barrow (1734). “The Usefulness of Mathematical Learning Explained and Demonstrated: Being Mathematical Lectures Read in the Publick Schools at the University of Cambridge”, p.32
Ben Jonson (1756). “Underwoods. Timber; or, Discoveries made upon men and matter. Horace, Of the art of poetry [with an English translation by Jonson]. The English grammar. Leges convivales, rules for the Tavern Academy. The case is altered”, p.152