A dictionary of architecture and building; biographical, historical and descriptive (1901)
Sturgis, Russell, 1836-1909 · New York, Macmillan · leaf 554
Fig. 40. A. Conical (Fig. 9), used in pendentives forreducing a square to an octagon. Frustra ofcones also cover trapezoidal spaces. … Fig B. Conoidal, the smaller base semicirciUar,the larger semieUiptical (Fig. 10) ; )•)• is the ridgeline.
Architecture
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
