Ray's Treatise on Geometry and Trigonometry. 421 pages. Begins by giving definitions for some basic geometrical terms, then begins Geometry, starting with parallel lines, then continuing with Arcs and Radii, the properties of triangles, Parallelograms, measuring area, Polygons, the geometry of space, Pyramids, Prisms, etc. The book then continues on into the subject of Trigonometry, and supplies logarithmic tables. No problems are supplied for the student in this book, which instead gives all it's attention to teaching the concepts. It is suggested that the student use another book to provide problems while learning the mathematical processes from this book.