Perspective and geometrical drawing : adapted to the use of candidates for second and third-class teachers' certificates
A drawing manual by Thomas H. McGuirl, published in Toronto by W. Briggs in 1887 to prepare candidates for Ontario second- and third-class teachers' certificates. The 88 plates are line-only perspective constructions: horizon and base lines, vanishing and measuring points, arcs, inscribed ellipses and lettered construction points, usable as diagram textures, grid overlays and technical line motifs.
