Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 69
FiG.72. FiG.73. angles to each other, and joint their extremities,thus inscribing a square in the circle. Bisect thequadrants by two diameters cutting the sides ofthe square in the points as g; join these points,
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.