Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 350
I), describe the arcs I) 7 and E E°.From any point, as 1, draw the racHal hue 1 (I, intersecting the innerarc at E. Take a stretch«iut of the (piarter-.section; place it as shown
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
