Simpson, F. M. (Frederick Moore), 1855-1928 · London, New York [etc.] Longmans, Green, and Co. · leaf 164
mains, more importance is given to the constructioniiluse of brick than it really possesses in Eome itself. Middletons knowledge ofRome was so great that his opinion carries considerable weight, but the existingvaults, especially those in the baths of Diocletian and Caracalla, tend to show that]\[.… … Fig. 75. ribs were built first, and allowed to set before the others wereadded. Another expedient for diminishing centering for stone vaults and arches wasadopted in the Pontdu Gard, also at NiQies.In that bridge, at apoint about one-thirdthe height of the arch,the voussoirs projectbelow the soffit…
Architecture
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