An illustration showing how to construct a circle arc without recourse to its center, but its chord…

An illustration showing how to construct a cyma, or two circle arcs that will tangent themselves, and…

An illustration showing how to construct an isometric ellipse by compass and six circle arcs. "Divide…

An illustration showing how to construct a talon, or two circle arcs that will tangent themselves, and…

"Draw one and one-half inch square about center of space. Divide AE into four 3/16" spaces, with scale.…