Viollet-le-Duc, Eugène-Emmanuel, 1814-1879, Van Brunt, Henry, 1832-1903 · Boston : Ticknor and Co. · leaf 112
nly supports them at the pointswhere the dividing ribs abut. The largest space to be vaultedis that of the central octagon, 6 8 feet in diameter, whose weight,however, is lessened by the circular opening at the top. Thehexagonal spaces are only 50 feet from angle to angle, and theu-oblique position… … Fig. is.—Iron and Masoiiry.—Vaulting of large Spaces. LECTURE XII. 93 for whicli we liave not space here ;^ moreover, I have no idea ofgiving, in this example, anything more than one of the rationaladaptations of the simultaneous employment of iron and masoniy ;—of simply indicating the direction…
Architecture
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