"This Fryer Lucas,in his Summa Arithmetica & Geometrica, (for he hath other Works extant) hath a very full Treatise of Arithmetick in all the parts of it; in Integers, Fractions, Surds, Binomials; Extraction of Roots, Quadratick, Cubick, &c. and the several Rules of Proportion, Fellowship, about Accompts, Alligation, and False Position, (so fully, that very little hath been thereunto added to this day:) And (after all this) of Algebra, with the Appurtenances thereunto, (as Surd Roots, Negative Quantities, Binomials, Roots Universal, the use of the Signs Plus, Minus, or + \; -, &c.) as far as Quadratick Equations reach, but no farther."