Colin MacLaurin (1756). “A Treatise of Algebra, in Three Parts: Containing I. The Fundamental Rules and Operations; II. The Composition and Resolution of Equations of All Degrees, and the Different Affections of Their Roots; III. The Application of Algebra and Geometry to Each Other. To which is Added an Appendix Concerning the General Properties of Geometrical Lines”, p.1

Joseph Addison (1860). “The Freeholder. Swift's notes on the Free-holder. The Plebian, by Sir Richard Steele, with The Old whig, by Mr. Addison. The Lover”, p.17