A treatise of algebra: wherein the principles are demonstrated ... To which is added, the geometrical construction of a great number of linear and plane problems ..
Thomas Simpson's algebra textbook, first published in London in the 1740s and reprinted in Philadelphia by T. & G. Palmer for Mathew Carey in 1809, aimed at students working through equations and geometric construction. The illustrations are small letterpress-era line diagrams — triangles, arcs, semicircles and radiating lines with italic letter labels — set into columns of type with algebraic notation.
