Advanced geometry for high schools : synthetic and analytical
A 1919 high-school textbook on synthetic and analytic geometry by A. H. McDougall, published in Toronto by Copp, Clark for senior secondary students. The 62 figures are line diagrams of triangles, circles and tangents lettered A through Z, mixing solid and dashed strokes, and supply clean geometric linework, construction arcs and labelled point sets for abstract layouts.
