Prior to Hegel's time, no philosopher had ever tried to state what "quantity" or "number" was. Hegel undertakes a monumental definition in some of his longest chapters in the Science of Logic. In this paper, the author describes the nature of Hegel's project and how Hegel derives "quantity" from the more primitive concept of "quality." The author also reviews Hegel's critique of calculus, which hereto has received very little attention in English. Finally the author shows how, according to Hegel, the concept of "measure" derives from the unity of quality and quantity. This is the second in a planned nine-part series that explicates how Hegel's logic functions, using a specially designed series of graphic illustrations that memorialize each and every official progression in the Science of Logic.