A dictionary of architecture and building; biographical, historical and descriptive (1901)
Sturgis, Russell, 1836-1909 · New York, Macmillan · leaf 558
Fig. 60 (Plan)- III. Oblique Vaults. (a) Figure 30. With straight axes and com-posed of equal barrel vaults, or of unequal, onebeing semicircular and the other semielliptical. … Fig. til. (6) An annular vault intersected by a conicalvault, the centre of the annulus being the apexof the cone (Fig. 31). 955 VAULT (c) An annular vault intersected by an under-pitch vault (Fig. 32).
Architecture
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.