The First Six Books of Euclid. In which coloured diagrams and symbols are used instead of letters for the greater ease of learners.
With the coloured geometric designs and symbols throughout in red, blue and yellow. First edition. 4to., xxix, [1], 268pp. Original publisher's blue cloth, upper panel stamped with decorated panel in blind, lettered with with geometric diagram in gilt, rebacked with new matching blue cloth spine sympathetically lettered in and tooled in gilt, original yellow endpapers, all edges gilt. London, William Pickering, 1847, 1847.